From 91694b9b58ab953f3b313be9389cc1303e472fc2 Mon Sep 17 00:00:00 2001
From: Jacques Lucke <jacques@blender.org>
Date: Fri, 7 Aug 2020 09:50:34 +0200
Subject: Code Style: use "#pragma once" in source directory

This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.

This patch has been generated by P1561 followed by `make format`.

Differential Revision: https://developer.blender.org/D8466
---
 source/blender/freestyle/FRS_freestyle.h                             | 5 +----
 source/blender/freestyle/intern/application/AppCanvas.h              | 5 +----
 source/blender/freestyle/intern/application/AppConfig.h              | 5 +----
 source/blender/freestyle/intern/application/AppView.h                | 5 +----
 source/blender/freestyle/intern/application/Controller.h             | 5 +----
 .../blender/freestyle/intern/blender_interface/BlenderFileLoader.h   | 5 +----
 .../freestyle/intern/blender_interface/BlenderStrokeRenderer.h       | 5 +----
 .../blender/freestyle/intern/blender_interface/BlenderStyleModule.h  | 5 +----
 source/blender/freestyle/intern/geometry/BBox.h                      | 5 +----
 source/blender/freestyle/intern/geometry/Bezier.h                    | 5 +----
 source/blender/freestyle/intern/geometry/FastGrid.h                  | 5 +----
 source/blender/freestyle/intern/geometry/FitCurve.h                  | 5 +----
 source/blender/freestyle/intern/geometry/Geom.h                      | 5 +----
 source/blender/freestyle/intern/geometry/GeomCleaner.h               | 5 +----
 source/blender/freestyle/intern/geometry/GeomUtils.h                 | 5 +----
 source/blender/freestyle/intern/geometry/Grid.h                      | 5 +----
 source/blender/freestyle/intern/geometry/GridHelpers.h               | 5 +----
 source/blender/freestyle/intern/geometry/HashGrid.h                  | 5 +----
 source/blender/freestyle/intern/geometry/Noise.h                     | 5 +----
 source/blender/freestyle/intern/geometry/Polygon.h                   | 5 +----
 source/blender/freestyle/intern/geometry/SweepLine.h                 | 5 +----
 source/blender/freestyle/intern/geometry/VecMat.h                    | 5 +----
 source/blender/freestyle/intern/geometry/matrix_util.h               | 5 +----
 source/blender/freestyle/intern/geometry/normal_cycle.h              | 5 +----
 source/blender/freestyle/intern/image/GaussianFilter.h               | 5 +----
 source/blender/freestyle/intern/image/Image.h                        | 5 +----
 source/blender/freestyle/intern/image/ImagePyramid.h                 | 5 +----
 source/blender/freestyle/intern/python/BPy_BBox.h                    | 5 +----
 source/blender/freestyle/intern/python/BPy_BinaryPredicate0D.h       | 5 +----
 source/blender/freestyle/intern/python/BPy_BinaryPredicate1D.h       | 5 +----
 source/blender/freestyle/intern/python/BPy_ContextFunctions.h        | 5 +----
 source/blender/freestyle/intern/python/BPy_Convert.h                 | 5 +----
 source/blender/freestyle/intern/python/BPy_Freestyle.h               | 5 +----
 source/blender/freestyle/intern/python/BPy_FrsMaterial.h             | 5 +----
 source/blender/freestyle/intern/python/BPy_FrsNoise.h                | 5 +----
 source/blender/freestyle/intern/python/BPy_Id.h                      | 5 +----
 source/blender/freestyle/intern/python/BPy_IntegrationType.h         | 5 +----
 source/blender/freestyle/intern/python/BPy_Interface0D.h             | 5 +----
 source/blender/freestyle/intern/python/BPy_Interface1D.h             | 5 +----
 source/blender/freestyle/intern/python/BPy_Iterator.h                | 5 +----
 source/blender/freestyle/intern/python/BPy_MediumType.h              | 5 +----
 source/blender/freestyle/intern/python/BPy_Nature.h                  | 5 +----
 source/blender/freestyle/intern/python/BPy_Operators.h               | 5 +----
 source/blender/freestyle/intern/python/BPy_SShape.h                  | 5 +----
 source/blender/freestyle/intern/python/BPy_StrokeAttribute.h         | 5 +----
 source/blender/freestyle/intern/python/BPy_StrokeShader.h            | 5 +----
 source/blender/freestyle/intern/python/BPy_UnaryFunction0D.h         | 5 +----
 source/blender/freestyle/intern/python/BPy_UnaryFunction1D.h         | 5 +----
 source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.h        | 5 +----
 source/blender/freestyle/intern/python/BPy_UnaryPredicate1D.h        | 5 +----
 source/blender/freestyle/intern/python/BPy_ViewMap.h                 | 5 +----
 source/blender/freestyle/intern/python/BPy_ViewShape.h               | 5 +----
 .../freestyle/intern/python/BinaryPredicate1D/BPy_FalseBP1D.h        | 5 +----
 .../freestyle/intern/python/BinaryPredicate1D/BPy_Length2DBP1D.h     | 5 +----
 .../freestyle/intern/python/BinaryPredicate1D/BPy_SameShapeIdBP1D.h  | 5 +----
 .../blender/freestyle/intern/python/BinaryPredicate1D/BPy_TrueBP1D.h | 5 +----
 .../intern/python/BinaryPredicate1D/BPy_ViewMapGradientNormBP1D.h    | 5 +----
 source/blender/freestyle/intern/python/Director.h                    | 5 +----
 source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.h  | 5 +----
 source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.h     | 5 +----
 source/blender/freestyle/intern/python/Interface0D/BPy_ViewVertex.h  | 5 +----
 .../intern/python/Interface0D/CurvePoint/BPy_StrokeVertex.h          | 5 +----
 .../freestyle/intern/python/Interface0D/ViewVertex/BPy_NonTVertex.h  | 5 +----
 .../freestyle/intern/python/Interface0D/ViewVertex/BPy_TVertex.h     | 5 +----
 source/blender/freestyle/intern/python/Interface1D/BPy_FEdge.h       | 5 +----
 source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.h    | 5 +----
 source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.h      | 5 +----
 source/blender/freestyle/intern/python/Interface1D/BPy_ViewEdge.h    | 5 +----
 source/blender/freestyle/intern/python/Interface1D/Curve/BPy_Chain.h | 5 +----
 .../freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSharp.h       | 5 +----
 .../freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSmooth.h      | 5 +----
 .../blender/freestyle/intern/python/Iterator/BPy_AdjacencyIterator.h | 5 +----
 .../freestyle/intern/python/Iterator/BPy_ChainPredicateIterator.h    | 5 +----
 .../freestyle/intern/python/Iterator/BPy_ChainSilhouetteIterator.h   | 5 +----
 .../blender/freestyle/intern/python/Iterator/BPy_ChainingIterator.h  | 5 +----
 .../freestyle/intern/python/Iterator/BPy_CurvePointIterator.h        | 5 +----
 .../freestyle/intern/python/Iterator/BPy_Interface0DIterator.h       | 5 +----
 .../blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.h   | 5 +----
 .../freestyle/intern/python/Iterator/BPy_StrokeVertexIterator.h      | 5 +----
 .../blender/freestyle/intern/python/Iterator/BPy_ViewEdgeIterator.h  | 5 +----
 .../freestyle/intern/python/Iterator/BPy_orientedViewEdgeIterator.h  | 5 +----
 .../intern/python/StrokeShader/BPy_BackboneStretcherShader.h         | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_BezierCurveShader.h     | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_BlenderTextureShader.h  | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_CalligraphicShader.h    | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_ColorNoiseShader.h      | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_ConstantColorShader.h   | 5 +----
 .../intern/python/StrokeShader/BPy_ConstantThicknessShader.h         | 5 +----
 .../python/StrokeShader/BPy_ConstrainedIncreasingThicknessShader.h   | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_GuidingLinesShader.h    | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_IncreasingColorShader.h | 5 +----
 .../intern/python/StrokeShader/BPy_IncreasingThicknessShader.h       | 5 +----
 .../intern/python/StrokeShader/BPy_PolygonalizationShader.h          | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_SamplingShader.h        | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_SmoothingShader.h       | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_SpatialNoiseShader.h    | 5 +----
 .../intern/python/StrokeShader/BPy_StrokeTextureStepShader.h         | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_ThicknessNoiseShader.h  | 5 +----
 .../freestyle/intern/python/StrokeShader/BPy_TipRemoverShader.h      | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DDouble.h        | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DEdgeNature.h    | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DFloat.h         | 5 +----
 .../freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DId.h  | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DMaterial.h      | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DUnsigned.h      | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec2f.h         | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec3f.h         | 5 +----
 .../python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.h      | 5 +----
 .../intern/python/UnaryFunction0D/BPy_UnaryFunction0DViewShape.h     | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_Id/BPy_ShapeIdF0D.h       | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_Material/BPy_MaterialF0D.h       | 5 +----
 .../UnaryFunction0D_Nature_EdgeNature/BPy_CurveNatureF0D.h           | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_Normal2DF0D.h   | 5 +----
 .../UnaryFunction0D_Vec2f/BPy_VertexOrientation2DF0D.h               | 5 +----
 .../UnaryFunction0D_Vec3f/BPy_VertexOrientation3DF0D.h               | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetOccludeeF0D.h   | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetShapeF0D.h      | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_double/BPy_Curvature2DAngleF0D.h | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_double/BPy_DensityF0D.h   | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedXF0D.h    | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedYF0D.h    | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedZF0D.h    | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetXF0D.h      | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetYF0D.h      | 5 +----
 .../python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetZF0D.h      | 5 +----
 .../UnaryFunction0D_double/BPy_LocalAverageDepthF0D.h                | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_double/BPy_ZDiscontinuityF0D.h   | 5 +----
 .../UnaryFunction0D_float/BPy_GetCurvilinearAbscissaF0D.h            | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_float/BPy_GetParameterF0D.h      | 5 +----
 .../UnaryFunction0D_float/BPy_GetViewMapGradientNormF0D.h            | 5 +----
 .../UnaryFunction0D_float/BPy_ReadCompleteViewMapPixelF0D.h          | 5 +----
 .../UnaryFunction0D/UnaryFunction0D_float/BPy_ReadMapPixelF0D.h      | 5 +----
 .../UnaryFunction0D_float/BPy_ReadSteerableViewMapPixelF0D.h         | 5 +----
 .../UnaryFunction0D_unsigned_int/BPy_QuantitativeInvisibilityF0D.h   | 5 +----
 .../UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h           | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DDouble.h        | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DEdgeNature.h    | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DFloat.h         | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DUnsigned.h      | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec2f.h         | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec3f.h         | 5 +----
 .../python/UnaryFunction1D/BPy_UnaryFunction1DVectorViewShape.h      | 5 +----
 .../intern/python/UnaryFunction1D/BPy_UnaryFunction1DVoid.h          | 5 +----
 .../UnaryFunction1D_Nature_EdgeNature/BPy_CurveNatureF1D.h           | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Normal2DF1D.h   | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Orientation2DF1D.h     | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_Vec3f/BPy_Orientation3DF1D.h     | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_double/BPy_Curvature2DAngleF1D.h | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_double/BPy_DensityF1D.h   | 5 +----
 .../UnaryFunction1D_double/BPy_GetCompleteViewMapDensityF1D.h        | 5 +----
 .../UnaryFunction1D_double/BPy_GetDirectionalViewMapDensityF1D.h     | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedXF1D.h    | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedYF1D.h    | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedZF1D.h    | 5 +----
 .../UnaryFunction1D_double/BPy_GetSteerableViewMapDensityF1D.h       | 5 +----
 .../UnaryFunction1D_double/BPy_GetViewMapGradientNormF1D.h           | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetXF1D.h      | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetYF1D.h      | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetZF1D.h      | 5 +----
 .../UnaryFunction1D_double/BPy_LocalAverageDepthF1D.h                | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_double/BPy_ZDiscontinuityF1D.h   | 5 +----
 .../UnaryFunction1D_unsigned_int/BPy_QuantitativeInvisibilityF1D.h   | 5 +----
 .../UnaryFunction1D_vector_ViewShape/BPy_GetOccludeeF1D.h            | 5 +----
 .../UnaryFunction1D_vector_ViewShape/BPy_GetOccludersF1D.h           | 5 +----
 .../UnaryFunction1D_vector_ViewShape/BPy_GetShapeF1D.h               | 5 +----
 .../UnaryFunction1D/UnaryFunction1D_void/BPy_ChainingTimeStampF1D.h  | 5 +----
 .../UnaryFunction1D_void/BPy_IncrementChainingTimeStampF1D.h         | 5 +----
 .../python/UnaryFunction1D/UnaryFunction1D_void/BPy_TimeStampF1D.h   | 5 +----
 .../blender/freestyle/intern/python/UnaryPredicate0D/BPy_FalseUP0D.h | 5 +----
 .../blender/freestyle/intern/python/UnaryPredicate0D/BPy_TrueUP0D.h  | 5 +----
 .../freestyle/intern/python/UnaryPredicate1D/BPy_ContourUP1D.h       | 5 +----
 .../intern/python/UnaryPredicate1D/BPy_DensityLowerThanUP1D.h        | 5 +----
 .../python/UnaryPredicate1D/BPy_EqualToChainingTimeStampUP1D.h       | 5 +----
 .../intern/python/UnaryPredicate1D/BPy_EqualToTimeStampUP1D.h        | 5 +----
 .../intern/python/UnaryPredicate1D/BPy_ExternalContourUP1D.h         | 5 +----
 .../blender/freestyle/intern/python/UnaryPredicate1D/BPy_FalseUP1D.h | 5 +----
 .../python/UnaryPredicate1D/BPy_QuantitativeInvisibilityUP1D.h       | 5 +----
 .../blender/freestyle/intern/python/UnaryPredicate1D/BPy_ShapeUP1D.h | 5 +----
 .../blender/freestyle/intern/python/UnaryPredicate1D/BPy_TrueUP1D.h  | 5 +----
 .../intern/python/UnaryPredicate1D/BPy_WithinImageBoundaryUP1D.h     | 5 +----
 source/blender/freestyle/intern/scene_graph/DrawingStyle.h           | 5 +----
 source/blender/freestyle/intern/scene_graph/FrsMaterial.h            | 5 +----
 source/blender/freestyle/intern/scene_graph/IndexedFaceSet.h         | 5 +----
 source/blender/freestyle/intern/scene_graph/LineRep.h                | 5 +----
 source/blender/freestyle/intern/scene_graph/Node.h                   | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeCamera.h             | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeDrawingStyle.h       | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeGroup.h              | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeLight.h              | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeShape.h              | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeTransform.h          | 5 +----
 source/blender/freestyle/intern/scene_graph/NodeViewLayer.h          | 5 +----
 source/blender/freestyle/intern/scene_graph/OrientedLineRep.h        | 5 +----
 source/blender/freestyle/intern/scene_graph/Rep.h                    | 5 +----
 source/blender/freestyle/intern/scene_graph/SceneHash.h              | 5 +----
 source/blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h     | 5 +----
 source/blender/freestyle/intern/scene_graph/SceneVisitor.h           | 5 +----
 source/blender/freestyle/intern/scene_graph/TriangleRep.h            | 5 +----
 source/blender/freestyle/intern/scene_graph/VertexRep.h              | 5 +----
 source/blender/freestyle/intern/stroke/AdvancedFunctions0D.h         | 5 +----
 source/blender/freestyle/intern/stroke/AdvancedFunctions1D.h         | 5 +----
 source/blender/freestyle/intern/stroke/AdvancedPredicates1D.h        | 5 +----
 source/blender/freestyle/intern/stroke/AdvancedStrokeShaders.h       | 5 +----
 source/blender/freestyle/intern/stroke/BasicStrokeShaders.h          | 5 +----
 source/blender/freestyle/intern/stroke/Canvas.h                      | 5 +----
 source/blender/freestyle/intern/stroke/Chain.h                       | 5 +----
 source/blender/freestyle/intern/stroke/ChainingIterators.h           | 5 +----
 source/blender/freestyle/intern/stroke/ContextFunctions.h            | 5 +----
 source/blender/freestyle/intern/stroke/Curve.h                       | 5 +----
 source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h      | 5 +----
 source/blender/freestyle/intern/stroke/CurveIterators.h              | 5 +----
 source/blender/freestyle/intern/stroke/Modifiers.h                   | 5 +----
 source/blender/freestyle/intern/stroke/Module.h                      | 5 +----
 source/blender/freestyle/intern/stroke/Operators.h                   | 5 +----
 source/blender/freestyle/intern/stroke/PSStrokeRenderer.h            | 5 +----
 source/blender/freestyle/intern/stroke/Predicates0D.h                | 5 +----
 source/blender/freestyle/intern/stroke/Predicates1D.h                | 5 +----
 source/blender/freestyle/intern/stroke/QInformationMap.h             | 5 +----
 source/blender/freestyle/intern/stroke/Stroke.h                      | 5 +----
 source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h     | 5 +----
 source/blender/freestyle/intern/stroke/StrokeIO.h                    | 5 +----
 source/blender/freestyle/intern/stroke/StrokeIterators.h             | 5 +----
 source/blender/freestyle/intern/stroke/StrokeLayer.h                 | 5 +----
 source/blender/freestyle/intern/stroke/StrokeRenderer.h              | 5 +----
 source/blender/freestyle/intern/stroke/StrokeRep.h                   | 5 +----
 source/blender/freestyle/intern/stroke/StrokeShader.h                | 5 +----
 source/blender/freestyle/intern/stroke/StrokeTesselator.h            | 5 +----
 source/blender/freestyle/intern/stroke/StyleModule.h                 | 5 +----
 source/blender/freestyle/intern/system/BaseIterator.h                | 5 +----
 source/blender/freestyle/intern/system/BaseObject.h                  | 5 +----
 source/blender/freestyle/intern/system/Cast.h                        | 5 +----
 source/blender/freestyle/intern/system/Exception.h                   | 5 +----
 source/blender/freestyle/intern/system/FreestyleConfig.h             | 5 +----
 source/blender/freestyle/intern/system/Id.h                          | 5 +----
 source/blender/freestyle/intern/system/Interpreter.h                 | 5 +----
 source/blender/freestyle/intern/system/Iterator.h                    | 5 +----
 source/blender/freestyle/intern/system/PointerSequence.h             | 5 +----
 source/blender/freestyle/intern/system/Precision.h                   | 5 +----
 source/blender/freestyle/intern/system/ProgressBar.h                 | 5 +----
 source/blender/freestyle/intern/system/PseudoNoise.h                 | 5 +----
 source/blender/freestyle/intern/system/PythonInterpreter.h           | 5 +----
 source/blender/freestyle/intern/system/RandGen.h                     | 5 +----
 source/blender/freestyle/intern/system/RenderMonitor.h               | 5 +----
 source/blender/freestyle/intern/system/StringUtils.h                 | 5 +----
 source/blender/freestyle/intern/system/TimeStamp.h                   | 5 +----
 source/blender/freestyle/intern/system/TimeUtils.h                   | 5 +----
 .../blender/freestyle/intern/view_map/ArbitraryGridDensityProvider.h | 5 +----
 source/blender/freestyle/intern/view_map/AutoPtrHelper.h             | 5 +----
 .../freestyle/intern/view_map/AverageAreaGridDensityProvider.h       | 5 +----
 source/blender/freestyle/intern/view_map/BoxGrid.h                   | 5 +----
 source/blender/freestyle/intern/view_map/CulledOccluderSource.h      | 5 +----
 source/blender/freestyle/intern/view_map/FEdgeXDetector.h            | 5 +----
 source/blender/freestyle/intern/view_map/Functions0D.h               | 5 +----
 source/blender/freestyle/intern/view_map/Functions1D.h               | 5 +----
 source/blender/freestyle/intern/view_map/GridDensityProvider.h       | 5 +----
 .../freestyle/intern/view_map/HeuristicGridDensityProviderFactory.h  | 5 +----
 source/blender/freestyle/intern/view_map/Interface0D.h               | 5 +----
 source/blender/freestyle/intern/view_map/Interface1D.h               | 5 +----
 source/blender/freestyle/intern/view_map/OccluderSource.h            | 5 +----
 source/blender/freestyle/intern/view_map/Pow23GridDensityProvider.h  | 5 +----
 source/blender/freestyle/intern/view_map/Silhouette.h                | 5 +----
 source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h      | 5 +----
 source/blender/freestyle/intern/view_map/SphericalGrid.h             | 5 +----
 source/blender/freestyle/intern/view_map/SteerableViewMap.h          | 5 +----
 source/blender/freestyle/intern/view_map/ViewEdgeXBuilder.h          | 5 +----
 source/blender/freestyle/intern/view_map/ViewMap.h                   | 5 +----
 source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h  | 5 +----
 source/blender/freestyle/intern/view_map/ViewMapBuilder.h            | 5 +----
 source/blender/freestyle/intern/view_map/ViewMapIO.h                 | 5 +----
 source/blender/freestyle/intern/view_map/ViewMapIterators.h          | 5 +----
 source/blender/freestyle/intern/view_map/ViewMapTesselator.h         | 5 +----
 source/blender/freestyle/intern/winged_edge/Curvature.h              | 5 +----
 source/blender/freestyle/intern/winged_edge/Nature.h                 | 5 +----
 source/blender/freestyle/intern/winged_edge/WEdge.h                  | 5 +----
 source/blender/freestyle/intern/winged_edge/WFillGrid.h              | 5 +----
 source/blender/freestyle/intern/winged_edge/WSFillGrid.h             | 5 +----
 source/blender/freestyle/intern/winged_edge/WXEdge.h                 | 5 +----
 source/blender/freestyle/intern/winged_edge/WXEdgeBuilder.h          | 5 +----
 source/blender/freestyle/intern/winged_edge/WingedEdgeBuilder.h      | 5 +----
 279 files changed, 279 insertions(+), 1116 deletions(-)

(limited to 'source/blender/freestyle')

diff --git a/source/blender/freestyle/FRS_freestyle.h b/source/blender/freestyle/FRS_freestyle.h
index 876f40b211f..57b6dc815a3 100644
--- a/source/blender/freestyle/FRS_freestyle.h
+++ b/source/blender/freestyle/FRS_freestyle.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FRS_FREESTYLE_H__
-#define __FRS_FREESTYLE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -69,5 +68,3 @@ struct Material *FRS_create_stroke_material(struct Main *bmain,
 #ifdef __cplusplus
 }
 #endif
-
-#endif  // __FRS_FREESTYLE_H__
diff --git a/source/blender/freestyle/intern/application/AppCanvas.h b/source/blender/freestyle/intern/application/AppCanvas.h
index 9d1e2458564..1ff7e781ce6 100644
--- a/source/blender/freestyle/intern/application/AppCanvas.h
+++ b/source/blender/freestyle/intern/application/AppCanvas.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __APPCANVAS_H__
-#define __APPCANVAS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -93,5 +92,3 @@ class AppCanvas : public Canvas {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __APPCANVAS_H__
diff --git a/source/blender/freestyle/intern/application/AppConfig.h b/source/blender/freestyle/intern/application/AppConfig.h
index 34f5d220cfe..61beff33876 100644
--- a/source/blender/freestyle/intern/application/AppConfig.h
+++ b/source/blender/freestyle/intern/application/AppConfig.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __APP_CONFIG_H__
-#define __APP_CONFIG_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -123,5 +122,3 @@ static const real DEFAULT_DKR_EPSILON = 0.0;
 }  // namespace Config
 
 } /* namespace Freestyle */
-
-#endif  // __APP_CONFIG_H__
diff --git a/source/blender/freestyle/intern/application/AppView.h b/source/blender/freestyle/intern/application/AppView.h
index 6009f2b0e50..3f07d2794c4 100644
--- a/source/blender/freestyle/intern/application/AppView.h
+++ b/source/blender/freestyle/intern/application/AppView.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __APPVIEW_H__
-#define __APPVIEW_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -272,5 +271,3 @@ class AppView {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __APPVIEW_H__
diff --git a/source/blender/freestyle/intern/application/Controller.h b/source/blender/freestyle/intern/application/Controller.h
index 613ea2cb45c..6c41733db36 100644
--- a/source/blender/freestyle/intern/application/Controller.h
+++ b/source/blender/freestyle/intern/application/Controller.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __CONTROLLER_H__
-#define __CONTROLLER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -278,5 +277,3 @@ class Controller {
 extern Controller *g_pController;
 
 } /* namespace Freestyle */
-
-#endif  // __CONTROLLER_H__
diff --git a/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.h b/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.h
index 9d8b7e55fbb..50834db3c5c 100644
--- a/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.h
+++ b/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BLENDER_FILE_LOADER_H__
-#define __BLENDER_FILE_LOADER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -168,5 +167,3 @@ class BlenderFileLoader {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __BLENDER_FILE_LOADER_H__
diff --git a/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.h b/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.h
index 21505f47ae2..1b2e57529d6 100644
--- a/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.h
+++ b/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BLENDER_STROKE_RENDERER_H__
-#define __BLENDER_STROKE_RENDERER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -102,5 +101,3 @@ class BlenderStrokeRenderer : public StrokeRenderer {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __BLENDER_STROKE_RENDERER_H__
diff --git a/source/blender/freestyle/intern/blender_interface/BlenderStyleModule.h b/source/blender/freestyle/intern/blender_interface/BlenderStyleModule.h
index 95612a42722..e7636e2453a 100644
--- a/source/blender/freestyle/intern/blender_interface/BlenderStyleModule.h
+++ b/source/blender/freestyle/intern/blender_interface/BlenderStyleModule.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BLENDERSTYLEMODULE_H__
-#define __BLENDERSTYLEMODULE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -87,5 +86,3 @@ class BlenderStyleModule : public StyleModule {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __BLENDERSTYLEMODULE_H__
diff --git a/source/blender/freestyle/intern/geometry/BBox.h b/source/blender/freestyle/intern/geometry/BBox.h
index a8965e63451..d9a070faa55 100644
--- a/source/blender/freestyle/intern/geometry/BBox.h
+++ b/source/blender/freestyle/intern/geometry/BBox.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BBOX_H__
-#define __BBOX_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -156,5 +155,3 @@ template<class Point> BBox<Point> &operator+(const BBox<Point> &b1, const BBox<P
 }
 
 } /* namespace Freestyle */
-
-#endif  // __BBOX_H__
diff --git a/source/blender/freestyle/intern/geometry/Bezier.h b/source/blender/freestyle/intern/geometry/Bezier.h
index adcd6e3a652..4c6b38935f9 100644
--- a/source/blender/freestyle/intern/geometry/Bezier.h
+++ b/source/blender/freestyle/intern/geometry/Bezier.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BEZIER_H__
-#define __BEZIER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -92,5 +91,3 @@ class BezierCurve {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __BEZIER_H__
diff --git a/source/blender/freestyle/intern/geometry/FastGrid.h b/source/blender/freestyle/intern/geometry/FastGrid.h
index 367c233d799..ec47f36d644 100644
--- a/source/blender/freestyle/intern/geometry/FastGrid.h
+++ b/source/blender/freestyle/intern/geometry/FastGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FASTGRID_H__
-#define __FASTGRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -76,5 +75,3 @@ class FastGrid : public Grid {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FASTGRID_H__
diff --git a/source/blender/freestyle/intern/geometry/FitCurve.h b/source/blender/freestyle/intern/geometry/FitCurve.h
index 92afd685d8f..c08dc52249e 100644
--- a/source/blender/freestyle/intern/geometry/FitCurve.h
+++ b/source/blender/freestyle/intern/geometry/FitCurve.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FITCURVE_H__
-#define __FITCURVE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -109,5 +108,3 @@ class FitCurveWrapper {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FITCURVE_H__
diff --git a/source/blender/freestyle/intern/geometry/Geom.h b/source/blender/freestyle/intern/geometry/Geom.h
index 63785d56cab..53703c3497a 100644
--- a/source/blender/freestyle/intern/geometry/Geom.h
+++ b/source/blender/freestyle/intern/geometry/Geom.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GEOM_H__
-#define __GEOM_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -69,5 +68,3 @@ typedef VecMat::SquareMatrix<real, 4> Matrix44r;
 }  // end of namespace Geometry
 
 } /* namespace Freestyle */
-
-#endif  // __GEOM_H__
diff --git a/source/blender/freestyle/intern/geometry/GeomCleaner.h b/source/blender/freestyle/intern/geometry/GeomCleaner.h
index aee8ed6963d..7abbf881548 100644
--- a/source/blender/freestyle/intern/geometry/GeomCleaner.h
+++ b/source/blender/freestyle/intern/geometry/GeomCleaner.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GEOMCLEANER_H__
-#define __GEOMCLEANER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -257,5 +256,3 @@ bool operator<(const IndexedVertex &iv1, const IndexedVertex &iv2)
 #endif
 
 } /* namespace Freestyle */
-
-#endif  // __GEOMCLEANER_H__
diff --git a/source/blender/freestyle/intern/geometry/GeomUtils.h b/source/blender/freestyle/intern/geometry/GeomUtils.h
index 635808aab4b..46cd307d9af 100644
--- a/source/blender/freestyle/intern/geometry/GeomUtils.h
+++ b/source/blender/freestyle/intern/geometry/GeomUtils.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GEOMUTILS_H__
-#define __GEOMUTILS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -266,5 +265,3 @@ void fromCameraToWorld(const Vec3r &p, Vec3r &q, const real model_view_matrix[4]
 }  // end of namespace GeomUtils
 
 } /* namespace Freestyle */
-
-#endif  // __GEOMUTILS_H__
diff --git a/source/blender/freestyle/intern/geometry/Grid.h b/source/blender/freestyle/intern/geometry/Grid.h
index c1a8dcdb370..b66f04398af 100644
--- a/source/blender/freestyle/intern/geometry/Grid.h
+++ b/source/blender/freestyle/intern/geometry/Grid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GRID_H__
-#define __GRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -433,5 +432,3 @@ class VirtualOccludersSet {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __GRID_H__
diff --git a/source/blender/freestyle/intern/geometry/GridHelpers.h b/source/blender/freestyle/intern/geometry/GridHelpers.h
index 3f3c669cb57..077688164b4 100644
--- a/source/blender/freestyle/intern/geometry/GridHelpers.h
+++ b/source/blender/freestyle/intern/geometry/GridHelpers.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GRIDHELPERS_H__
-#define __GRIDHELPERS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -212,5 +211,3 @@ inline void expandProscenium(real proscenium[4], const Vec3r &point)
 };  // namespace GridHelpers
 
 } /* namespace Freestyle */
-
-#endif  // __GRIDHELPERS_H__
diff --git a/source/blender/freestyle/intern/geometry/HashGrid.h b/source/blender/freestyle/intern/geometry/HashGrid.h
index 4bb92859775..6fb7f2b9cbe 100644
--- a/source/blender/freestyle/intern/geometry/HashGrid.h
+++ b/source/blender/freestyle/intern/geometry/HashGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __HASHGRID_H__
-#define __HASHGRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -104,5 +103,3 @@ class HashGrid : public Grid {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __HASHGRID_H__
diff --git a/source/blender/freestyle/intern/geometry/Noise.h b/source/blender/freestyle/intern/geometry/Noise.h
index 18992092b19..27a91ded9e2 100644
--- a/source/blender/freestyle/intern/geometry/Noise.h
+++ b/source/blender/freestyle/intern/geometry/Noise.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __NOISE_H__
-#define __NOISE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -81,5 +80,3 @@ class Noise {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __NOISE_H__
diff --git a/source/blender/freestyle/intern/geometry/Polygon.h b/source/blender/freestyle/intern/geometry/Polygon.h
index b3f47c8ca77..f6f827fd0f2 100644
--- a/source/blender/freestyle/intern/geometry/Polygon.h
+++ b/source/blender/freestyle/intern/geometry/Polygon.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __POLYGON_H__
-#define __POLYGON_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -230,5 +229,3 @@ class Polygon3r : public Polygon<Vec3r> {
 }  // end of namespace Geometry
 
 } /* namespace Freestyle */
-
-#endif  // __POLYGON_H__
diff --git a/source/blender/freestyle/intern/geometry/SweepLine.h b/source/blender/freestyle/intern/geometry/SweepLine.h
index b3555a4a160..d7d379d82f2 100644
--- a/source/blender/freestyle/intern/geometry/SweepLine.h
+++ b/source/blender/freestyle/intern/geometry/SweepLine.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __SWEEPLINE_H__
-#define __SWEEPLINE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -347,5 +346,3 @@ template<class T, class Point> class SweepLine {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __SWEEPLINE_H__
diff --git a/source/blender/freestyle/intern/geometry/VecMat.h b/source/blender/freestyle/intern/geometry/VecMat.h
index ee1cc42876c..64c3213560c 100644
--- a/source/blender/freestyle/intern/geometry/VecMat.h
+++ b/source/blender/freestyle/intern/geometry/VecMat.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __VECMAT_H__
-#define __VECMAT_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -1005,5 +1004,3 @@ inline std::ostream &operator<<(std::ostream &s, const Matrix<T, M, N> &m)
 }  // end of namespace VecMat
 
 } /* namespace Freestyle */
-
-#endif  // __VECMAT_H__
diff --git a/source/blender/freestyle/intern/geometry/matrix_util.h b/source/blender/freestyle/intern/geometry/matrix_util.h
index f42e043ca97..996ebc928a1 100644
--- a/source/blender/freestyle/intern/geometry/matrix_util.h
+++ b/source/blender/freestyle/intern/geometry/matrix_util.h
@@ -25,8 +25,7 @@
  *      FRANCE
  */
 
-#ifndef __MATRIX_UTIL__
-#define __MATRIX_UTIL__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -61,5 +60,3 @@ void semi_definite_symmetric_eigen(const double *mat, int n, double *eigen_vec,
 }  // namespace OGF
 
 } /* namespace Freestyle */
-
-#endif  // __MATRIX_UTIL__
diff --git a/source/blender/freestyle/intern/geometry/normal_cycle.h b/source/blender/freestyle/intern/geometry/normal_cycle.h
index a57bfdb953e..6ac9779e7c2 100644
--- a/source/blender/freestyle/intern/geometry/normal_cycle.h
+++ b/source/blender/freestyle/intern/geometry/normal_cycle.h
@@ -25,8 +25,7 @@
  *      FRANCE
  */
 
-#ifndef __MESH_TOOLS_MATH_NORMAL_CYCLE__
-#define __MESH_TOOLS_MATH_NORMAL_CYCLE__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -145,5 +144,3 @@ inline void NormalCycle::accumulate_dihedral_angle(const Vec3r &edge,
 }  // namespace OGF
 
 } /* namespace Freestyle */
-
-#endif  // __MESH_TOOLS_MATH_NORMAL_CYCLE__
diff --git a/source/blender/freestyle/intern/image/GaussianFilter.h b/source/blender/freestyle/intern/image/GaussianFilter.h
index 625e357eddf..ff765e619a8 100644
--- a/source/blender/freestyle/intern/image/GaussianFilter.h
+++ b/source/blender/freestyle/intern/image/GaussianFilter.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GAUSSIANFILTER_H__
-#define __GAUSSIANFILTER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -151,5 +150,3 @@ template<class Map> float GaussianFilter::getSmoothedPixel(Map *map, int x, int
 }
 
 } /* namespace Freestyle */
-
-#endif  // __GAUSSIANFILTER_H__
diff --git a/source/blender/freestyle/intern/image/Image.h b/source/blender/freestyle/intern/image/Image.h
index cf8b0e33c6b..385e243a1a2 100644
--- a/source/blender/freestyle/intern/image/Image.h
+++ b/source/blender/freestyle/intern/image/Image.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __IMAGE_H__
-#define __IMAGE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -430,5 +429,3 @@ class GrayImage : public FrsImage {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __IMAGE_H__
diff --git a/source/blender/freestyle/intern/image/ImagePyramid.h b/source/blender/freestyle/intern/image/ImagePyramid.h
index 8c6a8bcdff4..ee8bf69aa10 100644
--- a/source/blender/freestyle/intern/image/ImagePyramid.h
+++ b/source/blender/freestyle/intern/image/ImagePyramid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __IMAGEPYRAMID_H__
-#define __IMAGEPYRAMID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -113,5 +112,3 @@ class GaussianPyramid : public ImagePyramid {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __IMAGEPYRAMID_H__
diff --git a/source/blender/freestyle/intern/python/BPy_BBox.h b/source/blender/freestyle/intern/python/BPy_BBox.h
index 84542dc6d1c..a284deed10c 100644
--- a/source/blender/freestyle/intern/python/BPy_BBox.h
+++ b/source/blender/freestyle/intern/python/BPy_BBox.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BBOX_H__
-#define __FREESTYLE_PYTHON_BBOX_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -55,5 +54,3 @@ int BBox_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BBOX_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_BinaryPredicate0D.h b/source/blender/freestyle/intern/python/BPy_BinaryPredicate0D.h
index 3d0575a676c..cdf81f3e4fc 100644
--- a/source/blender/freestyle/intern/python/BPy_BinaryPredicate0D.h
+++ b/source/blender/freestyle/intern/python/BPy_BinaryPredicate0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BINARYPREDICATE0D_H__
-#define __FREESTYLE_PYTHON_BINARYPREDICATE0D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int BinaryPredicate0D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BINARYPREDICATE0D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_BinaryPredicate1D.h b/source/blender/freestyle/intern/python/BPy_BinaryPredicate1D.h
index b258f293694..b761f6f6ace 100644
--- a/source/blender/freestyle/intern/python/BPy_BinaryPredicate1D.h
+++ b/source/blender/freestyle/intern/python/BPy_BinaryPredicate1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BINARYPREDICATE1D_H__
-#define __FREESTYLE_PYTHON_BINARYPREDICATE1D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int BinaryPredicate1D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BINARYPREDICATE1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_ContextFunctions.h b/source/blender/freestyle/intern/python/BPy_ContextFunctions.h
index 674023fa008..4cc04379f18 100644
--- a/source/blender/freestyle/intern/python/BPy_ContextFunctions.h
+++ b/source/blender/freestyle/intern/python/BPy_ContextFunctions.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONTEXTFUNCTIONS_H__
-#define __FREESTYLE_PYTHON_CONTEXTFUNCTIONS_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -36,5 +35,3 @@ int ContextFunctions_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONTEXTFUNCTIONS_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Convert.h b/source/blender/freestyle/intern/python/BPy_Convert.h
index 19e0879beff..5a1c11ec086 100644
--- a/source/blender/freestyle/intern/python/BPy_Convert.h
+++ b/source/blender/freestyle/intern/python/BPy_Convert.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONVERT_H__
-#define __FREESTYLE_PYTHON_CONVERT_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -177,5 +176,3 @@ int convert_v2(PyObject *obj, void *v);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONVERT_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Freestyle.h b/source/blender/freestyle/intern/python/BPy_Freestyle.h
index a3a482be9ee..f63eb0d8466 100644
--- a/source/blender/freestyle/intern/python/BPy_Freestyle.h
+++ b/source/blender/freestyle/intern/python/BPy_Freestyle.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FREESTYLE_H__
-#define __FREESTYLE_PYTHON_FREESTYLE_H__
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -38,5 +37,3 @@ PyObject *Freestyle_Init(void);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FREESTYLE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_FrsMaterial.h b/source/blender/freestyle/intern/python/BPy_FrsMaterial.h
index 84a3ac2463f..13a116d7ef2 100644
--- a/source/blender/freestyle/intern/python/BPy_FrsMaterial.h
+++ b/source/blender/freestyle/intern/python/BPy_FrsMaterial.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FRSMATERIAL_H__
-#define __FREESTYLE_PYTHON_FRSMATERIAL_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -55,5 +54,3 @@ void FrsMaterial_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FRSMATERIAL_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_FrsNoise.h b/source/blender/freestyle/intern/python/BPy_FrsNoise.h
index 9dcf59779cf..09bcc82ae94 100644
--- a/source/blender/freestyle/intern/python/BPy_FrsNoise.h
+++ b/source/blender/freestyle/intern/python/BPy_FrsNoise.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FRSNOISE_H__
-#define __FREESTYLE_PYTHON_FRSNOISE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -55,5 +54,3 @@ int FrsNoise_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FRSNOISE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Id.h b/source/blender/freestyle/intern/python/BPy_Id.h
index 3544f751453..f5952297c66 100644
--- a/source/blender/freestyle/intern/python/BPy_Id.h
+++ b/source/blender/freestyle/intern/python/BPy_Id.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ID_H__
-#define __FREESTYLE_PYTHON_ID_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -57,5 +56,3 @@ int Id_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ID_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_IntegrationType.h b/source/blender/freestyle/intern/python/BPy_IntegrationType.h
index 525feb002e4..be815c6c95a 100644
--- a/source/blender/freestyle/intern/python/BPy_IntegrationType.h
+++ b/source/blender/freestyle/intern/python/BPy_IntegrationType.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INTEGRATIONTYPE_H__
-#define __FREESTYLE_PYTHON_INTEGRATIONTYPE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -49,5 +48,3 @@ int IntegrationType_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INTEGRATIONTYPE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Interface0D.h b/source/blender/freestyle/intern/python/BPy_Interface0D.h
index 81fdd40ff04..7e41a8888e1 100644
--- a/source/blender/freestyle/intern/python/BPy_Interface0D.h
+++ b/source/blender/freestyle/intern/python/BPy_Interface0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INTERFACE0D_H__
-#define __FREESTYLE_PYTHON_INTERFACE0D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -55,5 +54,3 @@ int Interface0D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INTERFACE0D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Interface1D.h b/source/blender/freestyle/intern/python/BPy_Interface1D.h
index db9bfa7f79c..20a4af0b4d0 100644
--- a/source/blender/freestyle/intern/python/BPy_Interface1D.h
+++ b/source/blender/freestyle/intern/python/BPy_Interface1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INTERFACE1D_H__
-#define __FREESTYLE_PYTHON_INTERFACE1D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -55,5 +54,3 @@ int Interface1D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INTERFACE1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Iterator.h b/source/blender/freestyle/intern/python/BPy_Iterator.h
index f9f80c5f1db..5d1e8422976 100644
--- a/source/blender/freestyle/intern/python/BPy_Iterator.h
+++ b/source/blender/freestyle/intern/python/BPy_Iterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ITERATOR_H__
-#define __FREESTYLE_PYTHON_ITERATOR_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -53,5 +52,3 @@ int Iterator_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_MediumType.h b/source/blender/freestyle/intern/python/BPy_MediumType.h
index 5c91890c249..854f826291e 100644
--- a/source/blender/freestyle/intern/python/BPy_MediumType.h
+++ b/source/blender/freestyle/intern/python/BPy_MediumType.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_MEDIUMTYPE_H__
-#define __FREESTYLE_PYTHON_MEDIUMTYPE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -62,5 +61,3 @@ extern PyLongObject _BPy_MediumType_OPAQUE_MEDIUM;
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_MEDIUMTYPE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Nature.h b/source/blender/freestyle/intern/python/BPy_Nature.h
index 8eb33f02488..48d15c8e796 100644
--- a/source/blender/freestyle/intern/python/BPy_Nature.h
+++ b/source/blender/freestyle/intern/python/BPy_Nature.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_NATURE_H__
-#define __FREESTYLE_PYTHON_NATURE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -53,5 +52,3 @@ int Nature_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_NATURE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_Operators.h b/source/blender/freestyle/intern/python/BPy_Operators.h
index 15797ca742e..3b060d63f3c 100644
--- a/source/blender/freestyle/intern/python/BPy_Operators.h
+++ b/source/blender/freestyle/intern/python/BPy_Operators.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_OPERATORS_H__
-#define __FREESTYLE_PYTHON_OPERATORS_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -53,5 +52,3 @@ int Operators_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_OPERATORS_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_SShape.h b/source/blender/freestyle/intern/python/BPy_SShape.h
index 55ef11b9a0b..9741a10f69e 100644
--- a/source/blender/freestyle/intern/python/BPy_SShape.h
+++ b/source/blender/freestyle/intern/python/BPy_SShape.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SSHAPE_H__
-#define __FREESTYLE_PYTHON_SSHAPE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int SShape_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SSHAPE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_StrokeAttribute.h b/source/blender/freestyle/intern/python/BPy_StrokeAttribute.h
index 9e14c292c0a..9068eb4c7a3 100644
--- a/source/blender/freestyle/intern/python/BPy_StrokeAttribute.h
+++ b/source/blender/freestyle/intern/python/BPy_StrokeAttribute.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKEATTRIBUTE_H__
-#define __FREESTYLE_PYTHON_STROKEATTRIBUTE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -56,5 +55,3 @@ void StrokeAttribute_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKEATTRIBUTE_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_StrokeShader.h b/source/blender/freestyle/intern/python/BPy_StrokeShader.h
index 23b1196fdb9..04fff8e8052 100644
--- a/source/blender/freestyle/intern/python/BPy_StrokeShader.h
+++ b/source/blender/freestyle/intern/python/BPy_StrokeShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKESHADER_H__
-#define __FREESTYLE_PYTHON_STROKESHADER_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -58,5 +57,3 @@ int StrokeShader_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_UnaryFunction0D.h b/source/blender/freestyle/intern/python/BPy_UnaryFunction0D.h
index c0834859dc8..1319cabe94a 100644
--- a/source/blender/freestyle/intern/python/BPy_UnaryFunction0D.h
+++ b/source/blender/freestyle/intern/python/BPy_UnaryFunction0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0D_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int UnaryFunction0D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_UnaryFunction1D.h b/source/blender/freestyle/intern/python/BPy_UnaryFunction1D.h
index dfd0e56beb6..331c3b4aaa1 100644
--- a/source/blender/freestyle/intern/python/BPy_UnaryFunction1D.h
+++ b/source/blender/freestyle/intern/python/BPy_UnaryFunction1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1D_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int UnaryFunction1D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.h b/source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.h
index d422b10f18e..2460b1f028b 100644
--- a/source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.h
+++ b/source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYPREDICATE0D_H__
-#define __FREESTYLE_PYTHON_UNARYPREDICATE0D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int UnaryPredicate0D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYPREDICATE0D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_UnaryPredicate1D.h b/source/blender/freestyle/intern/python/BPy_UnaryPredicate1D.h
index 22358fab525..8fad7f94caf 100644
--- a/source/blender/freestyle/intern/python/BPy_UnaryPredicate1D.h
+++ b/source/blender/freestyle/intern/python/BPy_UnaryPredicate1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYPREDICATE1D_H__
-#define __FREESTYLE_PYTHON_UNARYPREDICATE1D_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -54,5 +53,3 @@ int UnaryPredicate1D_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYPREDICATE1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_ViewMap.h b/source/blender/freestyle/intern/python/BPy_ViewMap.h
index fe1cd39deb3..59738b6dce9 100644
--- a/source/blender/freestyle/intern/python/BPy_ViewMap.h
+++ b/source/blender/freestyle/intern/python/BPy_ViewMap.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWMAP_H__
-#define __FREESTYLE_PYTHON_VIEWMAP_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -53,5 +52,3 @@ int ViewMap_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWMAP_H__ */
diff --git a/source/blender/freestyle/intern/python/BPy_ViewShape.h b/source/blender/freestyle/intern/python/BPy_ViewShape.h
index 3158353136f..bd51fd0d5cb 100644
--- a/source/blender/freestyle/intern/python/BPy_ViewShape.h
+++ b/source/blender/freestyle/intern/python/BPy_ViewShape.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWSHAPE_H__
-#define __FREESTYLE_PYTHON_VIEWSHAPE_H__
+#pragma once
 
 extern "C" {
 #include <Python.h>
@@ -57,5 +56,3 @@ int ViewShape_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWSHAPE_H__ */
diff --git a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_FalseBP1D.h b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_FalseBP1D.h
index abb9eca9b30..6d741400caa 100644
--- a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_FalseBP1D.h
+++ b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_FalseBP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FALSEBP1D_H__
-#define __FREESTYLE_PYTHON_FALSEBP1D_H__
+#pragma once
 
 #include "../BPy_BinaryPredicate1D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FALSEBP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_Length2DBP1D.h b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_Length2DBP1D.h
index 6ad2373c570..755da249855 100644
--- a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_Length2DBP1D.h
+++ b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_Length2DBP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_LENGTH2DBP1D_H__
-#define __FREESTYLE_PYTHON_LENGTH2DBP1D_H__
+#pragma once
 
 #include "../BPy_BinaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_LENGTH2DBP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_SameShapeIdBP1D.h b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_SameShapeIdBP1D.h
index 75fc5eaa271..08326706a53 100644
--- a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_SameShapeIdBP1D.h
+++ b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_SameShapeIdBP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SAMESHAPEIDBP1D_H__
-#define __FREESTYLE_PYTHON_SAMESHAPEIDBP1D_H__
+#pragma once
 
 #include "../BPy_BinaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SAMESHAPEIDBP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_TrueBP1D.h b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_TrueBP1D.h
index ed6a783fa47..76f3487d7db 100644
--- a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_TrueBP1D.h
+++ b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_TrueBP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TRUEBP1D_H__
-#define __FREESTYLE_PYTHON_TRUEBP1D_H__
+#pragma once
 
 #include "../BPy_BinaryPredicate1D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_TRUEBP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_ViewMapGradientNormBP1D.h b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_ViewMapGradientNormBP1D.h
index 1a451a688fb..b9ce88773a8 100644
--- a/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_ViewMapGradientNormBP1D.h
+++ b/source/blender/freestyle/intern/python/BinaryPredicate1D/BPy_ViewMapGradientNormBP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWMAPGRADIENTNORMBP1D_H__
-#define __FREESTYLE_PYTHON_VIEWMAPGRADIENTNORMBP1D_H__
+#pragma once
 
 #include "../BPy_BinaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWMAPGRADIENTNORMBP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/Director.h b/source/blender/freestyle/intern/python/Director.h
index 5c087e411ff..468150524f1 100644
--- a/source/blender/freestyle/intern/python/Director.h
+++ b/source/blender/freestyle/intern/python/Director.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_DIRECTOR_H__
-#define __FREESTYLE_PYTHON_DIRECTOR_H__
+#pragma once
 
 namespace Freestyle {
 class UnaryPredicate0D;
@@ -63,5 +62,3 @@ int Director_BPy_StrokeShader_shade(StrokeShader *ss, Stroke &s);
 // ChainingIterator: init, traverse
 int Director_BPy_ChainingIterator_init(ChainingIterator *c_it);
 int Director_BPy_ChainingIterator_traverse(ChainingIterator *c_it, AdjacencyIterator &a_it);
-
-#endif  // __FREESTYLE_PYTHON_DIRECTOR_H__
diff --git a/source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.h b/source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.h
index d0f4087f8a6..6a550085817 100644
--- a/source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.h
+++ b/source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVEPOINT_H__
-#define __FREESTYLE_PYTHON_CURVEPOINT_H__
+#pragma once
 
 #include "../BPy_Interface0D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVEPOINT_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.h b/source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.h
index 20a14f1422c..8d24576a98f 100644
--- a/source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.h
+++ b/source/blender/freestyle/intern/python/Interface0D/BPy_SVertex.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SVERTEX_H__
-#define __FREESTYLE_PYTHON_SVERTEX_H__
+#pragma once
 
 #include "../BPy_Interface0D.h"
 
@@ -50,5 +49,3 @@ void SVertex_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SVERTEX_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface0D/BPy_ViewVertex.h b/source/blender/freestyle/intern/python/Interface0D/BPy_ViewVertex.h
index 6769efa4673..cb9815fb3d4 100644
--- a/source/blender/freestyle/intern/python/Interface0D/BPy_ViewVertex.h
+++ b/source/blender/freestyle/intern/python/Interface0D/BPy_ViewVertex.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWVERTEX_H__
-#define __FREESTYLE_PYTHON_VIEWVERTEX_H__
+#pragma once
 
 #include "../BPy_Interface0D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWVERTEX_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface0D/CurvePoint/BPy_StrokeVertex.h b/source/blender/freestyle/intern/python/Interface0D/CurvePoint/BPy_StrokeVertex.h
index e2eab6ab887..44da0ed212a 100644
--- a/source/blender/freestyle/intern/python/Interface0D/CurvePoint/BPy_StrokeVertex.h
+++ b/source/blender/freestyle/intern/python/Interface0D/CurvePoint/BPy_StrokeVertex.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKEVERTEX_H__
-#define __FREESTYLE_PYTHON_STROKEVERTEX_H__
+#pragma once
 
 #include "../BPy_CurvePoint.h"
 
@@ -51,5 +50,3 @@ void StrokeVertex_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKEVERTEX_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_NonTVertex.h b/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_NonTVertex.h
index fdea985a125..43f2c2b4a5c 100644
--- a/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_NonTVertex.h
+++ b/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_NonTVertex.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_NONTVERTEX_H__
-#define __FREESTYLE_PYTHON_NONTVERTEX_H__
+#pragma once
 
 #include "../BPy_ViewVertex.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_NONTVERTEX_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_TVertex.h b/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_TVertex.h
index 165ad976fdf..253934bb4e7 100644
--- a/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_TVertex.h
+++ b/source/blender/freestyle/intern/python/Interface0D/ViewVertex/BPy_TVertex.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TVERTEX_H__
-#define __FREESTYLE_PYTHON_TVERTEX_H__
+#pragma once
 
 #include "../BPy_ViewVertex.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_TVERTEX_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/BPy_FEdge.h b/source/blender/freestyle/intern/python/Interface1D/BPy_FEdge.h
index 3ab8c5f8273..25b1bc99860 100644
--- a/source/blender/freestyle/intern/python/Interface1D/BPy_FEdge.h
+++ b/source/blender/freestyle/intern/python/Interface1D/BPy_FEdge.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FEDGE_H__
-#define __FREESTYLE_PYTHON_FEDGE_H__
+#pragma once
 
 #include "../BPy_Interface1D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FEDGE_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.h b/source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.h
index aa4fb409076..9bdc3919a38 100644
--- a/source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.h
+++ b/source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FRSCURVE_H__
-#define __FREESTYLE_PYTHON_FRSCURVE_H__
+#pragma once
 
 #include "../BPy_Interface1D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FRSCURVE_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.h b/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.h
index a08905e6043..33c6aa70f91 100644
--- a/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.h
+++ b/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKE_H__
-#define __FREESTYLE_PYTHON_STROKE_H__
+#pragma once
 
 #include "../BPy_Interface1D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKE_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/BPy_ViewEdge.h b/source/blender/freestyle/intern/python/Interface1D/BPy_ViewEdge.h
index c02d5d0f21b..519081cedbd 100644
--- a/source/blender/freestyle/intern/python/Interface1D/BPy_ViewEdge.h
+++ b/source/blender/freestyle/intern/python/Interface1D/BPy_ViewEdge.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWEDGE_H__
-#define __FREESTYLE_PYTHON_VIEWEDGE_H__
+#pragma once
 
 #include "../BPy_Interface1D.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWEDGE_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/Curve/BPy_Chain.h b/source/blender/freestyle/intern/python/Interface1D/Curve/BPy_Chain.h
index a9392cd81bf..73da253688c 100644
--- a/source/blender/freestyle/intern/python/Interface1D/Curve/BPy_Chain.h
+++ b/source/blender/freestyle/intern/python/Interface1D/Curve/BPy_Chain.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CHAIN_H__
-#define __FREESTYLE_PYTHON_CHAIN_H__
+#pragma once
 
 #include "../BPy_FrsCurve.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAIN_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSharp.h b/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSharp.h
index 450539acb16..2b8b09a5990 100644
--- a/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSharp.h
+++ b/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSharp.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FEDGESHARP_H__
-#define __FREESTYLE_PYTHON_FEDGESHARP_H__
+#pragma once
 
 #include "../BPy_FEdge.h"
 
@@ -50,5 +49,3 @@ void FEdgeSharp_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FEDGESHARP_H__ */
diff --git a/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSmooth.h b/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSmooth.h
index 901741a76ff..97497281310 100644
--- a/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSmooth.h
+++ b/source/blender/freestyle/intern/python/Interface1D/FEdge/BPy_FEdgeSmooth.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FEDGESMOOTH_H__
-#define __FREESTYLE_PYTHON_FEDGESMOOTH_H__
+#pragma once
 
 #include "../BPy_FEdge.h"
 
@@ -51,5 +50,3 @@ void FEdgeSmooth_mathutils_register_callback();
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FEDGESMOOTH_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_AdjacencyIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_AdjacencyIterator.h
index 9a360f23f0a..e5332e0d180 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_AdjacencyIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_AdjacencyIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ADJACENCYITERATOR_H__
-#define __FREESTYLE_PYTHON_ADJACENCYITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -48,5 +47,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ADJACENCYITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_ChainPredicateIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_ChainPredicateIterator.h
index 645e6573257..ece8018d285 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_ChainPredicateIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_ChainPredicateIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CHAINPREDICATEITERATOR_H__
-#define __FREESTYLE_PYTHON_CHAINPREDICATEITERATOR_H__
+#pragma once
 
 #include "BPy_ChainingIterator.h"
 
@@ -49,5 +48,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAINPREDICATEITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_ChainSilhouetteIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_ChainSilhouetteIterator.h
index 72823832441..f91d0fb2585 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_ChainSilhouetteIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_ChainSilhouetteIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CHAINSILHOUETTEITERATOR_H__
-#define __FREESTYLE_PYTHON_CHAINSILHOUETTEITERATOR_H__
+#pragma once
 
 #include "BPy_ChainingIterator.h"
 
@@ -47,5 +46,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAINSILHOUETTEITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_ChainingIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_ChainingIterator.h
index 7e3be0bc6cd..e950824764c 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_ChainingIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_ChainingIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CHAININGITERATOR_H__
-#define __FREESTYLE_PYTHON_CHAININGITERATOR_H__
+#pragma once
 
 #include "BPy_ViewEdgeIterator.h"
 
@@ -47,5 +46,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAININGITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_CurvePointIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_CurvePointIterator.h
index aa84b1020ce..db36bf386ec 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_CurvePointIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_CurvePointIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVEPOINTITERATOR_H__
-#define __FREESTYLE_PYTHON_CURVEPOINTITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -47,5 +46,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVEPOINTITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_Interface0DIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_Interface0DIterator.h
index 3695cda6c76..663193bedee 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_Interface0DIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_Interface0DIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INTERFACE0DITERATOR_H__
-#define __FREESTYLE_PYTHON_INTERFACE0DITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -49,5 +48,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INTERFACE0DITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.h
index 2a3bfa6baf9..a34dc7a63c5 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SVERTEXITERATOR_H__
-#define __FREESTYLE_PYTHON_SVERTEXITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -47,5 +46,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SVERTEXITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_StrokeVertexIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_StrokeVertexIterator.h
index 04bca16337d..629471a664c 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_StrokeVertexIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_StrokeVertexIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKEVERTEXITERATOR_H__
-#define __FREESTYLE_PYTHON_STROKEVERTEXITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -50,5 +49,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKEVERTEXITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_ViewEdgeIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_ViewEdgeIterator.h
index c9061d30e07..7169a13f328 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_ViewEdgeIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_ViewEdgeIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VIEWEDGEITERATOR_H__
-#define __FREESTYLE_PYTHON_VIEWEDGEITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -47,5 +46,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VIEWEDGEITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/Iterator/BPy_orientedViewEdgeIterator.h b/source/blender/freestyle/intern/python/Iterator/BPy_orientedViewEdgeIterator.h
index 179e315b1be..7a13f6d2c72 100644
--- a/source/blender/freestyle/intern/python/Iterator/BPy_orientedViewEdgeIterator.h
+++ b/source/blender/freestyle/intern/python/Iterator/BPy_orientedViewEdgeIterator.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ORIENTEDVIEWEDGEITERATOR_H__
-#define __FREESTYLE_PYTHON_ORIENTEDVIEWEDGEITERATOR_H__
+#pragma once
 
 #include "../BPy_Iterator.h"
 
@@ -49,5 +48,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ORIENTEDVIEWEDGEITERATOR_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_BackboneStretcherShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_BackboneStretcherShader.h
index c37d330e4a7..bd63b2fb337 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_BackboneStretcherShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_BackboneStretcherShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BACKBONESTRETCHERSHADER_H__
-#define __FREESTYLE_PYTHON_BACKBONESTRETCHERSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BACKBONESTRETCHERSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_BezierCurveShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_BezierCurveShader.h
index b38fcec838d..a0b80b401ba 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_BezierCurveShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_BezierCurveShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BEZIERCURVESHADER_H__
-#define __FREESTYLE_PYTHON_BEZIERCURVESHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BEZIERCURVESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_BlenderTextureShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_BlenderTextureShader.h
index 35335ffc023..7147a542467 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_BlenderTextureShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_BlenderTextureShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_BLENDERTEXTURESHADER_H__
-#define __FREESTYLE_PYTHON_BLENDERTEXTURESHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_BLENDERTEXTURESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_CalligraphicShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_CalligraphicShader.h
index 35a94a1620d..b64e1b9376e 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_CalligraphicShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_CalligraphicShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CALLIGRAPHICSHADER_H__
-#define __FREESTYLE_PYTHON_CALLIGRAPHICSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CALLIGRAPHICSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_ColorNoiseShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_ColorNoiseShader.h
index 054479d916d..ada3165eea9 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_ColorNoiseShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_ColorNoiseShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_COLORNOISESHADER_H__
-#define __FREESTYLE_PYTHON_COLORNOISESHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_COLORNOISESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantColorShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantColorShader.h
index 36b59e6493e..7f58ed53e96 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantColorShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantColorShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONSTANTCOLORSHADER_H__
-#define __FREESTYLE_PYTHON_CONSTANTCOLORSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONSTANTCOLORSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantThicknessShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantThicknessShader.h
index 3a11ab9c9a0..9323e2b9143 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantThicknessShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstantThicknessShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONSTANTTHICKNESSSHADER_H__
-#define __FREESTYLE_PYTHON_CONSTANTTHICKNESSSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONSTANTTHICKNESSSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstrainedIncreasingThicknessShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstrainedIncreasingThicknessShader.h
index 04912499c04..e3946c4bedb 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstrainedIncreasingThicknessShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_ConstrainedIncreasingThicknessShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONSTRAINEDINCREASINGTHICKNESSSHADER_H__
-#define __FREESTYLE_PYTHON_CONSTRAINEDINCREASINGTHICKNESSSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONSTRAINEDINCREASINGTHICKNESSSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_GuidingLinesShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_GuidingLinesShader.h
index 217acbc4648..51fd37978d5 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_GuidingLinesShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_GuidingLinesShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GUIDINGLINESSHADER_H__
-#define __FREESTYLE_PYTHON_GUIDINGLINESSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GUIDINGLINESSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingColorShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingColorShader.h
index d7d1d053efd..def647abcce 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingColorShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingColorShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INCREASINGCOLORSHADER_H__
-#define __FREESTYLE_PYTHON_INCREASINGCOLORSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INCREASINGCOLORSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingThicknessShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingThicknessShader.h
index 28636263813..7ded1c81beb 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingThicknessShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_IncreasingThicknessShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INCREASINGTHICKNESSSHADER_H__
-#define __FREESTYLE_PYTHON_INCREASINGTHICKNESSSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INCREASINGTHICKNESSSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_PolygonalizationShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_PolygonalizationShader.h
index e44ca1caa51..c50b388965a 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_PolygonalizationShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_PolygonalizationShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_POLYGONALIZATIONSHADER_H__
-#define __FREESTYLE_PYTHON_POLYGONALIZATIONSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_POLYGONALIZATIONSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_SamplingShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_SamplingShader.h
index 50dbae6916e..073c5e8df42 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_SamplingShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_SamplingShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SAMPLINGSHADER_H__
-#define __FREESTYLE_PYTHON_SAMPLINGSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SAMPLINGSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_SmoothingShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_SmoothingShader.h
index 4b553d76770..fcd559b661d 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_SmoothingShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_SmoothingShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHONSMOOTHINGSHADER_H__
-#define __FREESTYLE_PYTHONSMOOTHINGSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHONSMOOTHINGSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_SpatialNoiseShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_SpatialNoiseShader.h
index 7e5e644c46f..59e3e32d6cf 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_SpatialNoiseShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_SpatialNoiseShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SPATIALNOISESHADER_H__
-#define __FREESTYLE_PYTHON_SPATIALNOISESHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SPATIALNOISESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_StrokeTextureStepShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_StrokeTextureStepShader.h
index d53ca139b2b..ef0ebfad883 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_StrokeTextureStepShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_StrokeTextureStepShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_STROKETEXTURESTEPSHADER_H__
-#define __FREESTYLE_PYTHON_STROKETEXTURESTEPSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -46,5 +45,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_STROKETEXTURESTEPSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_ThicknessNoiseShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_ThicknessNoiseShader.h
index 1a42985b245..e18f60c033b 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_ThicknessNoiseShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_ThicknessNoiseShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_THICKNESSNOISESHADER_H__
-#define __FREESTYLE_PYTHON_THICKNESSNOISESHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_THICKNESSNOISESHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/StrokeShader/BPy_TipRemoverShader.h b/source/blender/freestyle/intern/python/StrokeShader/BPy_TipRemoverShader.h
index a82be691c81..bc7c2a2f2f4 100644
--- a/source/blender/freestyle/intern/python/StrokeShader/BPy_TipRemoverShader.h
+++ b/source/blender/freestyle/intern/python/StrokeShader/BPy_TipRemoverShader.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TIPREMOVERSHADER_H__
-#define __FREESTYLE_PYTHON_TIPREMOVERSHADER_H__
+#pragma once
 
 #include "../BPy_StrokeShader.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_TIPREMOVERSHADER_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DDouble.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DDouble.h
index 8abccd27591..60ebc646d74 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DDouble.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DDouble.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DDOUBLE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DDOUBLE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction0DDouble_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DDOUBLE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DEdgeNature.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DEdgeNature.h
index 5a92142c88a..9ce4b3bfd0b 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DEdgeNature.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DEdgeNature.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DEDGENATURE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DEDGENATURE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -50,5 +49,3 @@ int UnaryFunction0DEdgeNature_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DEDGENATURE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DFloat.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DFloat.h
index 53dc88d0e21..fd221201d99 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DFloat.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DFloat.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DFLOAT_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DFLOAT_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction0DFloat_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DFLOAT_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DId.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DId.h
index a8887b081ce..14e5d48ce43 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DId.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DId.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DID_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DID_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -50,5 +49,3 @@ int UnaryFunction0DId_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DID_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DMaterial.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DMaterial.h
index 558719032f8..bbd53c409eb 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DMaterial.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DMaterial.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DMATERIAL_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DMATERIAL_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -50,5 +49,3 @@ int UnaryFunction0DMaterial_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DMATERIAL_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DUnsigned.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DUnsigned.h
index ac09b51eceb..1a466ffc673 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DUnsigned.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DUnsigned.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DUNSIGNED_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DUNSIGNED_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction0DUnsigned_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DUNSIGNED_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec2f.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec2f.h
index 1639e1a5356..6c3d5fc85cc 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec2f.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec2f.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC2F_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC2F_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -51,5 +50,3 @@ int UnaryFunction0DVec2f_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC2F_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec3f.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec3f.h
index 0f3bcc51f2e..4be9b170311 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec3f.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVec3f.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC3F_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC3F_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -51,5 +50,3 @@ int UnaryFunction0DVec3f_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DVEC3F_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.h
index 4f559a09ba9..2a36ae21002 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DVECTORVIEWSHAPE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DVECTORVIEWSHAPE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -53,5 +52,3 @@ int UnaryFunction0DVectorViewShape_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DVECTORVIEWSHAPE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DViewShape.h b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DViewShape.h
index af3661669bd..8a8dcdceb1f 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DViewShape.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DViewShape.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION0DVIEWSHAPE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION0DVIEWSHAPE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0D.h"
 
@@ -50,5 +49,3 @@ int UnaryFunction0DViewShape_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION0DVIEWSHAPE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Id/BPy_ShapeIdF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Id/BPy_ShapeIdF0D.h
index 1aea0736c9b..ce4b448df03 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Id/BPy_ShapeIdF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Id/BPy_ShapeIdF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SHAPEIDF0D_H__
-#define __FREESTYLE_PYTHON_SHAPEIDF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DId.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SHAPEIDF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Material/BPy_MaterialF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Material/BPy_MaterialF0D.h
index f1520fa63ee..b569b9e1e81 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Material/BPy_MaterialF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Material/BPy_MaterialF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_MATERIALF0D_H__
-#define __FREESTYLE_PYTHON_MATERIALF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DMaterial.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_MATERIALF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Nature_EdgeNature/BPy_CurveNatureF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Nature_EdgeNature/BPy_CurveNatureF0D.h
index f24e63d09f9..5e29845c6b9 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Nature_EdgeNature/BPy_CurveNatureF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Nature_EdgeNature/BPy_CurveNatureF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVENATUREF0D_H__
-#define __FREESTYLE_PYTHON_CURVENATUREF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DEdgeNature.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVENATUREF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_Normal2DF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_Normal2DF0D.h
index 45a4ec3124d..c9b10412f34 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_Normal2DF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_Normal2DF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_NORMAL2DF0D_H__
-#define __FREESTYLE_PYTHON_NORMAL2DF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DVec2f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_NORMAL2DF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_VertexOrientation2DF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_VertexOrientation2DF0D.h
index 8e76c31ff27..036bc82b52a 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_VertexOrientation2DF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec2f/BPy_VertexOrientation2DF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VERTEXORIENTATION2DF0D_H__
-#define __FREESTYLE_PYTHON_VERTEXORIENTATION2DF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DVec2f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VERTEXORIENTATION2DF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec3f/BPy_VertexOrientation3DF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec3f/BPy_VertexOrientation3DF0D.h
index 391f7c9536b..c99c344d470 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec3f/BPy_VertexOrientation3DF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_Vec3f/BPy_VertexOrientation3DF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_VERTEXORIENTATION3DF0D_H__
-#define __FREESTYLE_PYTHON_VERTEXORIENTATION3DF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DVec3f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_VERTEXORIENTATION3DF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetOccludeeF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetOccludeeF0D.h
index 45c9524e185..20ca0499a1e 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetOccludeeF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetOccludeeF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETOCCLUDEEF0D_H__
-#define __FREESTYLE_PYTHON_GETOCCLUDEEF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETOCCLUDEEF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetShapeF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetShapeF0D.h
index c1db8c1219a..4e6dd6b9f60 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetShapeF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_ViewShape/BPy_GetShapeF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETSHAPEF0D_H__
-#define __FREESTYLE_PYTHON_GETSHAPEF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETSHAPEF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_Curvature2DAngleF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_Curvature2DAngleF0D.h
index b57119257b9..6fcafef8143 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_Curvature2DAngleF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_Curvature2DAngleF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVATURE2DANGLEF0D_H__
-#define __FREESTYLE_PYTHON_CURVATURE2DANGLEF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVATURE2DANGLEF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_DensityF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_DensityF0D.h
index 34bbd8331fb..8df2f67aff3 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_DensityF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_DensityF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_DENSITYF0D_H__
-#define __FREESTYLE_PYTHON_DENSITYF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_DENSITYF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedXF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedXF0D.h
index ddd500f617e..cf5adf216fc 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedXF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedXF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDXF0D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDXF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDXF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedYF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedYF0D.h
index 8fccf14971f..6293f9daa24 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedYF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedYF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDYF0D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDYF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDYF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedZF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedZF0D.h
index eecf69adb12..edae33e4c85 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedZF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetProjectedZF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDZF0D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDZF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDZF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetXF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetXF0D.h
index 745bd5c628d..e0427fb1ccd 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetXF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetXF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETXF0D_H__
-#define __FREESTYLE_PYTHON_GETXF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETXF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetYF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetYF0D.h
index 437ec573585..3f4f3c85dc7 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetYF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetYF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETYF0D_H__
-#define __FREESTYLE_PYTHON_GETYF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETYF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetZF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetZF0D.h
index 840303fa59d..54a451e81f4 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetZF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_GetZF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETZF0D_H__
-#define __FREESTYLE_PYTHON_GETZF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETZF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_LocalAverageDepthF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_LocalAverageDepthF0D.h
index f8072427d47..85626895d20 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_LocalAverageDepthF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_LocalAverageDepthF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF0D_H__
-#define __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_ZDiscontinuityF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_ZDiscontinuityF0D.h
index d0aed95fc1a..fe2f333da37 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_ZDiscontinuityF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_double/BPy_ZDiscontinuityF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ZDISCONTINUITYF0D_H__
-#define __FREESTYLE_PYTHON_ZDISCONTINUITYF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ZDISCONTINUITYF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetCurvilinearAbscissaF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetCurvilinearAbscissaF0D.h
index 72238cfc255..8fffe3fd51d 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetCurvilinearAbscissaF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetCurvilinearAbscissaF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETCURVILINEARABSCISSAF0D_H__
-#define __FREESTYLE_PYTHON_GETCURVILINEARABSCISSAF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETCURVILINEARABSCISSAF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetParameterF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetParameterF0D.h
index 4fdb6419f21..3346b519e60 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetParameterF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetParameterF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPARAMETERF0D_H__
-#define __FREESTYLE_PYTHON_GETPARAMETERF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPARAMETERF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetViewMapGradientNormF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetViewMapGradientNormF0D.h
index 6ed42ee8019..de4930912f4 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetViewMapGradientNormF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_GetViewMapGradientNormF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF0D_H__
-#define __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadCompleteViewMapPixelF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadCompleteViewMapPixelF0D.h
index 48d36543ca0..ceee0151771 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadCompleteViewMapPixelF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadCompleteViewMapPixelF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_READCOMPLETEVIEWMAPPIXELF0D_H__
-#define __FREESTYLE_PYTHON_READCOMPLETEVIEWMAPPIXELF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_READCOMPLETEVIEWMAPPIXELF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadMapPixelF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadMapPixelF0D.h
index 014a4aa2b8e..54c9ac984f9 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadMapPixelF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadMapPixelF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_READMAPPIXELF0D_H__
-#define __FREESTYLE_PYTHON_READMAPPIXELF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_READMAPPIXELF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadSteerableViewMapPixelF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadSteerableViewMapPixelF0D.h
index 3cff99be633..f1fa1f1b7a2 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadSteerableViewMapPixelF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_float/BPy_ReadSteerableViewMapPixelF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_READSTEERABLEVIEWMAPPIXELF0D_H__
-#define __FREESTYLE_PYTHON_READSTEERABLEVIEWMAPPIXELF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DFloat.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_READSTEERABLEVIEWMAPPIXELF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_unsigned_int/BPy_QuantitativeInvisibilityF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_unsigned_int/BPy_QuantitativeInvisibilityF0D.h
index dd64fb40d85..510cc7ef146 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_unsigned_int/BPy_QuantitativeInvisibilityF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_unsigned_int/BPy_QuantitativeInvisibilityF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF0D_H__
-#define __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DUnsigned.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h
index 82889b64aba..9e932ff9eff 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction0D/UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETOCCLUDERSF0D_H__
-#define __FREESTYLE_PYTHON_GETOCCLUDERSF0D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction0DVectorViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETOCCLUDERSF0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DDouble.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DDouble.h
index cfd7f954b54..1fb42a18337 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DDouble.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DDouble.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DDOUBLE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DDOUBLE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction1DDouble_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DDOUBLE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DEdgeNature.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DEdgeNature.h
index 1a7a5a2d7ee..886eb469d51 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DEdgeNature.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DEdgeNature.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DEDGENATURE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DEDGENATURE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -50,5 +49,3 @@ int UnaryFunction1DEdgeNature_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DEDGENATURE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DFloat.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DFloat.h
index 8a5a329b0bf..8b977c9c96a 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DFloat.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DFloat.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DFLOAT_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DFLOAT_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction1DFloat_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DFLOAT_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DUnsigned.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DUnsigned.h
index b18bf34b27e..9149275b610 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DUnsigned.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DUnsigned.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DUNSIGNED_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DUNSIGNED_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction1DUnsigned_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DUNSIGNED_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec2f.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec2f.h
index f4cad92334f..b55f9af7c4d 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec2f.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec2f.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC2F_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC2F_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -51,5 +50,3 @@ int UnaryFunction1DVec2f_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC2F_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec3f.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec3f.h
index 253a8d550e3..9e4342979e4 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec3f.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVec3f.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC3F_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC3F_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -51,5 +50,3 @@ int UnaryFunction1DVec3f_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DVEC3F_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVectorViewShape.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVectorViewShape.h
index 80511e7c145..bfbcf5e451d 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVectorViewShape.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVectorViewShape.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DVECTORVIEWSHAPE_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DVECTORVIEWSHAPE_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -53,5 +52,3 @@ int UnaryFunction1DVectorViewShape_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DVECTORVIEWSHAPE_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVoid.h b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVoid.h
index 03d949f879d..3a821bc2083 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVoid.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/BPy_UnaryFunction1DVoid.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_UNARYFUNCTION1DVOID_H__
-#define __FREESTYLE_PYTHON_UNARYFUNCTION1DVOID_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1D.h"
 
@@ -48,5 +47,3 @@ int UnaryFunction1DVoid_Init(PyObject *module);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_UNARYFUNCTION1DVOID_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Nature_EdgeNature/BPy_CurveNatureF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Nature_EdgeNature/BPy_CurveNatureF1D.h
index 15c381eb279..961c9729e6c 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Nature_EdgeNature/BPy_CurveNatureF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Nature_EdgeNature/BPy_CurveNatureF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVENATUREF1D_H__
-#define __FREESTYLE_PYTHON_CURVENATUREF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DEdgeNature.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVENATUREF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Normal2DF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Normal2DF1D.h
index 343c4379b4a..080f26aa753 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Normal2DF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Normal2DF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_NORMAL2DF1D_H__
-#define __FREESTYLE_PYTHON_NORMAL2DF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVec2f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_NORMAL2DF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Orientation2DF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Orientation2DF1D.h
index 5b453cbe714..013423003c6 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Orientation2DF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec2f/BPy_Orientation2DF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ORIENTATION2DF1D_H__
-#define __FREESTYLE_PYTHON_ORIENTATION2DF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVec2f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ORIENTATION2DF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec3f/BPy_Orientation3DF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec3f/BPy_Orientation3DF1D.h
index 26c6cd845db..2e79559bf43 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec3f/BPy_Orientation3DF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_Vec3f/BPy_Orientation3DF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ORIENTATION3DF1D_H__
-#define __FREESTYLE_PYTHON_ORIENTATION3DF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVec3f.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ORIENTATION3DF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_Curvature2DAngleF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_Curvature2DAngleF1D.h
index 7a3a3fcff4b..241c864fdad 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_Curvature2DAngleF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_Curvature2DAngleF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CURVATURE2DANGLEF1D_H__
-#define __FREESTYLE_PYTHON_CURVATURE2DANGLEF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CURVATURE2DANGLEF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_DensityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_DensityF1D.h
index 71daa14069a..1b1040d66c4 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_DensityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_DensityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_DENSITYF1D_H__
-#define __FREESTYLE_PYTHON_DENSITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_DENSITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetCompleteViewMapDensityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetCompleteViewMapDensityF1D.h
index dacfb33553e..1bbb4d46fc5 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetCompleteViewMapDensityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetCompleteViewMapDensityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETCOMPLETEVIEWMAPDENSITYF1D_H__
-#define __FREESTYLE_PYTHON_GETCOMPLETEVIEWMAPDENSITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETCOMPLETEVIEWMAPDENSITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetDirectionalViewMapDensityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetDirectionalViewMapDensityF1D.h
index b039fadcdca..8e55fc7cc50 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetDirectionalViewMapDensityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetDirectionalViewMapDensityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETDIRECTIONALVIEWMAPDENSITYF1D_H__
-#define __FREESTYLE_PYTHON_GETDIRECTIONALVIEWMAPDENSITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETDIRECTIONALVIEWMAPDENSITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedXF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedXF1D.h
index febb3265f97..66bd3983e45 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedXF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedXF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDXF1D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDXF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDXF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedYF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedYF1D.h
index 5a0a5f42cb0..b1a1e90f83f 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedYF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedYF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDYF1D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedZF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedZF1D.h
index aeb42521d1f..73b01bbf999 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedZF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetProjectedZF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETPROJECTEDZF1D_H__
-#define __FREESTYLE_PYTHON_GETPROJECTEDZF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETPROJECTEDZF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetSteerableViewMapDensityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetSteerableViewMapDensityF1D.h
index 47f168af2a8..81167d36352 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetSteerableViewMapDensityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetSteerableViewMapDensityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETSTEERABLEVIEWMAPDENSITYF1D_H__
-#define __FREESTYLE_PYTHON_GETSTEERABLEVIEWMAPDENSITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETSTEERABLEVIEWMAPDENSITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetViewMapGradientNormF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetViewMapGradientNormF1D.h
index 4f19b4ac67f..0e4a67cf4df 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetViewMapGradientNormF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetViewMapGradientNormF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF1D_H__
-#define __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETVIEWMAPGRADIENTNORMF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetXF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetXF1D.h
index 7db31882381..30218ccd5e5 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetXF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetXF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETXF1D_H__
-#define __FREESTYLE_PYTHON_GETXF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETXF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetYF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetYF1D.h
index 3f70d64e200..16afac368c1 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetYF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetYF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETYF1D_H__
-#define __FREESTYLE_PYTHON_GETYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetZF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetZF1D.h
index b841bde2a5c..a204f3d6665 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetZF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_GetZF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETZF1D_H__
-#define __FREESTYLE_PYTHON_GETZF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETZF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_LocalAverageDepthF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_LocalAverageDepthF1D.h
index 258d028bfbd..d472489fb0c 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_LocalAverageDepthF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_LocalAverageDepthF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF1D_H__
-#define __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_LOCALAVERAGEDEPTHF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_ZDiscontinuityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_ZDiscontinuityF1D.h
index c336591842b..c1966472377 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_ZDiscontinuityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_double/BPy_ZDiscontinuityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_ZDISCONTINUITYF1D_H__
-#define __FREESTYLE_PYTHON_ZDISCONTINUITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DDouble.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_ZDISCONTINUITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_unsigned_int/BPy_QuantitativeInvisibilityF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_unsigned_int/BPy_QuantitativeInvisibilityF1D.h
index 0d4d118995b..c76e5f821f2 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_unsigned_int/BPy_QuantitativeInvisibilityF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_unsigned_int/BPy_QuantitativeInvisibilityF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF1D_H__
-#define __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DUnsigned.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludeeF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludeeF1D.h
index 5a14b5dc35d..2e414446e47 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludeeF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludeeF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETOCCLUDEEF1D_H__
-#define __FREESTYLE_PYTHON_GETOCCLUDEEF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVectorViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETOCCLUDEEF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludersF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludersF1D.h
index 29899d443a6..52c78bd7f4c 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludersF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetOccludersF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETOCCLUDERSF1D_H__
-#define __FREESTYLE_PYTHON_GETOCCLUDERSF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVectorViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETOCCLUDERSF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetShapeF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetShapeF1D.h
index b90f3df5831..9c025e3b404 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetShapeF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_vector_ViewShape/BPy_GetShapeF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_GETSHAPEF1D_H__
-#define __FREESTYLE_PYTHON_GETSHAPEF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVectorViewShape.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_GETSHAPEF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_ChainingTimeStampF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_ChainingTimeStampF1D.h
index c6423ef434f..0a8650d6794 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_ChainingTimeStampF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_ChainingTimeStampF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CHAININGTIMESTAMPF1D_H__
-#define __FREESTYLE_PYTHON_CHAININGTIMESTAMPF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVoid.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAININGTIMESTAMPF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_IncrementChainingTimeStampF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_IncrementChainingTimeStampF1D.h
index 0d74b1f7756..e555788f4c9 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_IncrementChainingTimeStampF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_IncrementChainingTimeStampF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_INCREMENTCHAININGTIMESTAMPF1D_H__
-#define __FREESTYLE_PYTHON_INCREMENTCHAININGTIMESTAMPF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVoid.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_INCREMENTCHAININGTIMESTAMPF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_TimeStampF1D.h b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_TimeStampF1D.h
index 4787f35cfc5..117d724d179 100644
--- a/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_TimeStampF1D.h
+++ b/source/blender/freestyle/intern/python/UnaryFunction1D/UnaryFunction1D_void/BPy_TimeStampF1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TIMESTAMPF1D_H__
-#define __FREESTYLE_PYTHON_TIMESTAMPF1D_H__
+#pragma once
 
 #include "../BPy_UnaryFunction1DVoid.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CHAININGTIMESTAMPF1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_FalseUP0D.h b/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_FalseUP0D.h
index b947ccf5b95..0c36e770b80 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_FalseUP0D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_FalseUP0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FALSEUP0D_H__
-#define __FREESTYLE_PYTHON_FALSEUP0D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate0D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FALSEUP0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_TrueUP0D.h b/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_TrueUP0D.h
index 72acf363992..abdfb4e294d 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_TrueUP0D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate0D/BPy_TrueUP0D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TRUEUP0D_H__
-#define __FREESTYLE_PYTHON_TRUEUP0D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate0D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_TRUEUP0D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ContourUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ContourUP1D.h
index de6c40fa8ac..be06a0fee33 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ContourUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ContourUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_CONTOURUP1D_H__
-#define __FREESTYLE_PYTHON_CONTOURUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_CONTOURUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_DensityLowerThanUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_DensityLowerThanUP1D.h
index fb02b63fa3d..068c7727ec0 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_DensityLowerThanUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_DensityLowerThanUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_DENSITYLOWERTHANUP1D_H__
-#define __FREESTYLE_PYTHON_DENSITYLOWERTHANUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_DENSITYLOWERTHANUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToChainingTimeStampUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToChainingTimeStampUP1D.h
index e2ba8b7709b..d103c1356ab 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToChainingTimeStampUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToChainingTimeStampUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_EQUALTOCHAININGTIMESTAMPUP1D_H__
-#define __FREESTYLE_PYTHON_EQUALTOCHAININGTIMESTAMPUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_EQUALTOCHAININGTIMESTAMPUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToTimeStampUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToTimeStampUP1D.h
index 13736242382..9e3d90ab760 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToTimeStampUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_EqualToTimeStampUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_EQUALTOTIMESTAMPUP1D_H__
-#define __FREESTYLE_PYTHON_EQUALTOTIMESTAMPUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_EQUALTOTIMESTAMPUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ExternalContourUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ExternalContourUP1D.h
index 4d2a22731fa..0576b727f4a 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ExternalContourUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ExternalContourUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_EXTERNALCONTOURUP1D_H__
-#define __FREESTYLE_PYTHON_EXTERNALCONTOURUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_EXTERNALCONTOURUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_FalseUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_FalseUP1D.h
index 57255c2333f..a74d2aba0a6 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_FalseUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_FalseUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_FALSEUP1D_H__
-#define __FREESTYLE_PYTHON_FALSEUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_FALSEUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_QuantitativeInvisibilityUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_QuantitativeInvisibilityUP1D.h
index bbb1dce5ed1..970ddd48273 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_QuantitativeInvisibilityUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_QuantitativeInvisibilityUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYUP1D_H__
-#define __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -45,5 +44,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_QUANTITATIVEINVISIBILITYUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ShapeUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ShapeUP1D.h
index a48ed0aa0da..c60aa7aa9cf 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ShapeUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_ShapeUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_SHAPEUP1D_H__
-#define __FREESTYLE_PYTHON_SHAPEUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_SHAPEUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_TrueUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_TrueUP1D.h
index 49c3dcdacca..e036cfe95ed 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_TrueUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_TrueUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_TRUEUP1D_H__
-#define __FREESTYLE_PYTHON_TRUEUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -43,5 +42,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_TRUEUP1D_H__ */
diff --git a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_WithinImageBoundaryUP1D.h b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_WithinImageBoundaryUP1D.h
index 2481beee78e..1d08f7fb530 100644
--- a/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_WithinImageBoundaryUP1D.h
+++ b/source/blender/freestyle/intern/python/UnaryPredicate1D/BPy_WithinImageBoundaryUP1D.h
@@ -18,8 +18,7 @@
  * \ingroup freestyle
  */
 
-#ifndef __FREESTYLE_PYTHON_WITHINIMAGEBOUNDARYUP1D_H__
-#define __FREESTYLE_PYTHON_WITHINIMAGEBOUNDARYUP1D_H__
+#pragma once
 
 #include "../BPy_UnaryPredicate1D.h"
 
@@ -44,5 +43,3 @@ typedef struct {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __FREESTYLE_PYTHON_WITHINIMAGEBOUNDARYUP1D_H__ */
diff --git a/source/blender/freestyle/intern/scene_graph/DrawingStyle.h b/source/blender/freestyle/intern/scene_graph/DrawingStyle.h
index 631f4b99adc..ca1e2351868 100644
--- a/source/blender/freestyle/intern/scene_graph/DrawingStyle.h
+++ b/source/blender/freestyle/intern/scene_graph/DrawingStyle.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_DRAWING_STYLE_H__
-#define __FREESTYLE_DRAWING_STYLE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -124,5 +123,3 @@ DrawingStyle &DrawingStyle::operator=(const DrawingStyle &ds)
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_DRAWING_STYLE_H__
diff --git a/source/blender/freestyle/intern/scene_graph/FrsMaterial.h b/source/blender/freestyle/intern/scene_graph/FrsMaterial.h
index 80cd783f164..18d3c8839dd 100644
--- a/source/blender/freestyle/intern/scene_graph/FrsMaterial.h
+++ b/source/blender/freestyle/intern/scene_graph/FrsMaterial.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_MATERIAL_H__
-#define __FREESTYLE_MATERIAL_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -479,5 +478,3 @@ bool FrsMaterial::operator==(const FrsMaterial &m) const
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_MATERIAL_H__
diff --git a/source/blender/freestyle/intern/scene_graph/IndexedFaceSet.h b/source/blender/freestyle/intern/scene_graph/IndexedFaceSet.h
index f8dd25913c1..9d1fc009e37 100644
--- a/source/blender/freestyle/intern/scene_graph/IndexedFaceSet.h
+++ b/source/blender/freestyle/intern/scene_graph/IndexedFaceSet.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_INDEXED_FACE_SET_H__
-#define __FREESTYLE_INDEXED_FACE_SET_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -311,5 +310,3 @@ class IndexedFaceSet : public Rep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_INDEXED_FACE_SET_H__
diff --git a/source/blender/freestyle/intern/scene_graph/LineRep.h b/source/blender/freestyle/intern/scene_graph/LineRep.h
index e45a33d9fc4..43fd736570f 100644
--- a/source/blender/freestyle/intern/scene_graph/LineRep.h
+++ b/source/blender/freestyle/intern/scene_graph/LineRep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_LINE_REP_H__
-#define __FREESTYLE_LINE_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -149,5 +148,3 @@ class LineRep : public Rep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_LINE_REP_H__
diff --git a/source/blender/freestyle/intern/scene_graph/Node.h b/source/blender/freestyle/intern/scene_graph/Node.h
index 96072993590..07bf186ea39 100644
--- a/source/blender/freestyle/intern/scene_graph/Node.h
+++ b/source/blender/freestyle/intern/scene_graph/Node.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_H__
-#define __FREESTYLE_NODE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -113,5 +112,3 @@ class Node : public BaseObject {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeCamera.h b/source/blender/freestyle/intern/scene_graph/NodeCamera.h
index 2878e7a834e..cc7b1f7f67c 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeCamera.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeCamera.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_CAMERA_H__
-#define __FREESTYLE_NODE_CAMERA_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -217,5 +216,3 @@ class NodePerspectiveCamera : public NodeCamera {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_CAMERA_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeDrawingStyle.h b/source/blender/freestyle/intern/scene_graph/NodeDrawingStyle.h
index f1dfad06250..8bbdaf30bad 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeDrawingStyle.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeDrawingStyle.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_DRAWING_STYLE_H__
-#define __FREESTYLE_NODE_DRAWING_STYLE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -106,5 +105,3 @@ class NodeDrawingStyle : public NodeGroup {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_DRAWING_STYLE_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeGroup.h b/source/blender/freestyle/intern/scene_graph/NodeGroup.h
index 5ef16255e46..0558e22bed1 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeGroup.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeGroup.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_GROUP_H__
-#define __FREESTYLE_NODE_GROUP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -80,5 +79,3 @@ class NodeGroup : public Node {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_GROUP_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeLight.h b/source/blender/freestyle/intern/scene_graph/NodeLight.h
index 046b61beaf4..bf8389441b6 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeLight.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeLight.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_LIGHT_H__
-#define __FREESTYLE_NODE_LIGHT_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -101,5 +100,3 @@ class NodeLight : public Node {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_LIGHT_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeShape.h b/source/blender/freestyle/intern/scene_graph/NodeShape.h
index 13ee265ec10..5f7a24b85d5 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeShape.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeShape.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_SHAPE_H__
-#define __FREESTYLE_NODE_SHAPE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -93,5 +92,3 @@ class NodeShape : public Node {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_SHAPE_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeTransform.h b/source/blender/freestyle/intern/scene_graph/NodeTransform.h
index 1118417657f..9d55046a515 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeTransform.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeTransform.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_TRANSFORM_H__
-#define __FREESTYLE_NODE_TRANSFORM_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -98,5 +97,3 @@ class NodeTransform : public NodeGroup {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_TRANSFORM_H__
diff --git a/source/blender/freestyle/intern/scene_graph/NodeViewLayer.h b/source/blender/freestyle/intern/scene_graph/NodeViewLayer.h
index 2339abe9aed..d52155eb216 100644
--- a/source/blender/freestyle/intern/scene_graph/NodeViewLayer.h
+++ b/source/blender/freestyle/intern/scene_graph/NodeViewLayer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NODE_VIEW_LAYER_H__
-#define __FREESTYLE_NODE_VIEW_LAYER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -59,5 +58,3 @@ class NodeViewLayer : public Node {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NODE_VIEW_LAYER_H__
diff --git a/source/blender/freestyle/intern/scene_graph/OrientedLineRep.h b/source/blender/freestyle/intern/scene_graph/OrientedLineRep.h
index 2e39259077e..c33fd529c69 100644
--- a/source/blender/freestyle/intern/scene_graph/OrientedLineRep.h
+++ b/source/blender/freestyle/intern/scene_graph/OrientedLineRep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ORIENTED_LINE_REP_H__
-#define __FREESTYLE_ORIENTED_LINE_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -62,5 +61,3 @@ class OrientedLineRep : public LineRep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ORIENTED_LINE_REP_H__
diff --git a/source/blender/freestyle/intern/scene_graph/Rep.h b/source/blender/freestyle/intern/scene_graph/Rep.h
index 58553d257d9..dae5272beed 100644
--- a/source/blender/freestyle/intern/scene_graph/Rep.h
+++ b/source/blender/freestyle/intern/scene_graph/Rep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_REP_H__
-#define __FREESTYLE_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -181,5 +180,3 @@ class Rep : public BaseObject {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_REP_H__
diff --git a/source/blender/freestyle/intern/scene_graph/SceneHash.h b/source/blender/freestyle/intern/scene_graph/SceneHash.h
index 05c0880f806..605e2ddaa84 100644
--- a/source/blender/freestyle/intern/scene_graph/SceneHash.h
+++ b/source/blender/freestyle/intern/scene_graph/SceneHash.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SCENE_HASH_H__
-#define __FREESTYLE_SCENE_HASH_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -78,5 +77,3 @@ class SceneHash : public SceneVisitor {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SCENE_HASH_H__
diff --git a/source/blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h b/source/blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h
index f19233bba3b..9436bdccf57 100644
--- a/source/blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h
+++ b/source/blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SCENE_PRETTY_PRINTER_H__
-#define __FREESTYLE_SCENE_PRETTY_PRINTER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -96,5 +95,3 @@ class ScenePrettyPrinter : public SceneVisitor {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SCENE_PRETTY_PRINTER_H__
diff --git a/source/blender/freestyle/intern/scene_graph/SceneVisitor.h b/source/blender/freestyle/intern/scene_graph/SceneVisitor.h
index 81a478e8cf3..72e0f4cbb28 100644
--- a/source/blender/freestyle/intern/scene_graph/SceneVisitor.h
+++ b/source/blender/freestyle/intern/scene_graph/SceneVisitor.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SCENE_VISITOR_H__
-#define __FREESTYLE_SCENE_VISITOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -111,5 +110,3 @@ class SceneVisitor {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SCENE_VISITOR_H__
diff --git a/source/blender/freestyle/intern/scene_graph/TriangleRep.h b/source/blender/freestyle/intern/scene_graph/TriangleRep.h
index e4190faae6f..4461b38d68b 100644
--- a/source/blender/freestyle/intern/scene_graph/TriangleRep.h
+++ b/source/blender/freestyle/intern/scene_graph/TriangleRep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_TRIANGLE_REP_H__
-#define __FREESTYLE_TRIANGLE_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -142,5 +141,3 @@ class TriangleRep : public Rep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_TRIANGLE_REP_H__
diff --git a/source/blender/freestyle/intern/scene_graph/VertexRep.h b/source/blender/freestyle/intern/scene_graph/VertexRep.h
index 3831be3105a..278cfa694f7 100644
--- a/source/blender/freestyle/intern/scene_graph/VertexRep.h
+++ b/source/blender/freestyle/intern/scene_graph/VertexRep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VERTEX_REP_H__
-#define __FREESTYLE_VERTEX_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -129,5 +128,3 @@ class VertexRep : public Rep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VERTEX_REP_H__
diff --git a/source/blender/freestyle/intern/stroke/AdvancedFunctions0D.h b/source/blender/freestyle/intern/stroke/AdvancedFunctions0D.h
index dcab48fd12f..17e419bed54 100644
--- a/source/blender/freestyle/intern/stroke/AdvancedFunctions0D.h
+++ b/source/blender/freestyle/intern/stroke/AdvancedFunctions0D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ADVANCED_FUNCTIONS_0D_H__
-#define __FREESTYLE_ADVANCED_FUNCTIONS_0D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -209,5 +208,3 @@ class GetViewMapGradientNormF0D : public UnaryFunction0D<float> {
 }  // end of namespace Functions0D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ADVANCED_FUNCTIONS_0D_H__
diff --git a/source/blender/freestyle/intern/stroke/AdvancedFunctions1D.h b/source/blender/freestyle/intern/stroke/AdvancedFunctions1D.h
index d14a9836b95..349db393e17 100644
--- a/source/blender/freestyle/intern/stroke/AdvancedFunctions1D.h
+++ b/source/blender/freestyle/intern/stroke/AdvancedFunctions1D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ADVANCED_FUNCTIONS_1D_H__
-#define __FREESTYLE_ADVANCED_FUNCTIONS_1D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -289,5 +288,3 @@ class GetViewMapGradientNormF1D : public UnaryFunction1D<double> {
 }  // end of namespace Functions1D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ADVANCED_FUNCTIONS_1D_H__
diff --git a/source/blender/freestyle/intern/stroke/AdvancedPredicates1D.h b/source/blender/freestyle/intern/stroke/AdvancedPredicates1D.h
index 05fcf7f356f..25a5efcce34 100644
--- a/source/blender/freestyle/intern/stroke/AdvancedPredicates1D.h
+++ b/source/blender/freestyle/intern/stroke/AdvancedPredicates1D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ADVANCED_PREDICATES_1D_H__
-#define __FREESTYLE_ADVANCED_PREDICATES_1D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -82,5 +81,3 @@ class DensityLowerThanUP1D : public UnaryPredicate1D {
 }  // end of namespace Predicates1D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ADVANCED_PREDICATES_1D_H__
diff --git a/source/blender/freestyle/intern/stroke/AdvancedStrokeShaders.h b/source/blender/freestyle/intern/stroke/AdvancedStrokeShaders.h
index 544fdee519f..63c7d451599 100644
--- a/source/blender/freestyle/intern/stroke/AdvancedStrokeShaders.h
+++ b/source/blender/freestyle/intern/stroke/AdvancedStrokeShaders.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ADVANCED_STROKE_SHADERS_H__
-#define __FREESTYLE_ADVANCED_STROKE_SHADERS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -232,5 +231,3 @@ class OmissionShader : public StrokeShader {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ADVANCED_STROKE_SHADERS_H__
diff --git a/source/blender/freestyle/intern/stroke/BasicStrokeShaders.h b/source/blender/freestyle/intern/stroke/BasicStrokeShaders.h
index 5a2d0cbe458..8663cfd42bf 100644
--- a/source/blender/freestyle/intern/stroke/BasicStrokeShaders.h
+++ b/source/blender/freestyle/intern/stroke/BasicStrokeShaders.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_BASIC_STROKE_SHADERS_H__
-#define __FREESTYLE_BASIC_STROKE_SHADERS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -660,5 +659,3 @@ class StrokeTextureStepShader : public StrokeShader {
 }  // end of namespace StrokeShaders
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_BASIC_STROKE_SHADERS_H__
diff --git a/source/blender/freestyle/intern/stroke/Canvas.h b/source/blender/freestyle/intern/stroke/Canvas.h
index 2a0ebbe17c5..2bbd9c2682f 100644
--- a/source/blender/freestyle/intern/stroke/Canvas.h
+++ b/source/blender/freestyle/intern/stroke/Canvas.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CANVAS_H__
-#define __FREESTYLE_CANVAS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -252,5 +251,3 @@ class Canvas {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CANVAS_H__
diff --git a/source/blender/freestyle/intern/stroke/Chain.h b/source/blender/freestyle/intern/stroke/Chain.h
index 7cd0c64cc16..d5dae5c35ba 100644
--- a/source/blender/freestyle/intern/stroke/Chain.h
+++ b/source/blender/freestyle/intern/stroke/Chain.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CHAIN_H__
-#define __FREESTYLE_CHAIN_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -109,5 +108,3 @@ class Chain : public Curve {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CHAIN_H__
diff --git a/source/blender/freestyle/intern/stroke/ChainingIterators.h b/source/blender/freestyle/intern/stroke/ChainingIterators.h
index 36611a4a009..e3d49c167b5 100644
--- a/source/blender/freestyle/intern/stroke/ChainingIterators.h
+++ b/source/blender/freestyle/intern/stroke/ChainingIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CHAINING_ITERATORS_H__
-#define __FREESTYLE_CHAINING_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -415,5 +414,3 @@ class ChainPredicateIterator : public ChainingIterator {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CHAINING_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/ContextFunctions.h b/source/blender/freestyle/intern/stroke/ContextFunctions.h
index 6897e2b193d..334bdd657c1 100644
--- a/source/blender/freestyle/intern/stroke/ContextFunctions.h
+++ b/source/blender/freestyle/intern/stroke/ContextFunctions.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CONTEXT_FUNCTIONS_H__
-#define __FREESTYLE_CONTEXT_FUNCTIONS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -106,5 +105,3 @@ FEdge *GetSelectedFEdgeCF();
 }  // end of namespace ContextFunctions
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CONTEXT_FUNCTIONS_H__
diff --git a/source/blender/freestyle/intern/stroke/Curve.h b/source/blender/freestyle/intern/stroke/Curve.h
index 8a233eef4ab..5f0d2a6aed7 100644
--- a/source/blender/freestyle/intern/stroke/Curve.h
+++ b/source/blender/freestyle/intern/stroke/Curve.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CURVE_H__
-#define __FREESTYLE_CURVE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -604,5 +603,3 @@ class Curve : public Interface1D {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CURVE_H__
diff --git a/source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h b/source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h
index 4ac4c04774e..1896a674477 100644
--- a/source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h
+++ b/source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CURVE_ADVANCED_ITERATORS_H__
-#define __FREESTYLE_CURVE_ADVANCED_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -388,5 +387,3 @@ class __point_iterator : public IteratorBase<Traits, BidirectionalIteratorTag_Tr
 }  // end of namespace CurveInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CURVE_ADVANCED_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/CurveIterators.h b/source/blender/freestyle/intern/stroke/CurveIterators.h
index 3ac7ede0954..9d1cf33ed80 100644
--- a/source/blender/freestyle/intern/stroke/CurveIterators.h
+++ b/source/blender/freestyle/intern/stroke/CurveIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CURVE_ITERATORS_H__
-#define __FREESTYLE_CURVE_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -303,5 +302,3 @@ class CurvePointIterator : public Interface0DIteratorNested {
 }  // end of namespace CurveInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CURVE_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/Modifiers.h b/source/blender/freestyle/intern/stroke/Modifiers.h
index ecdfd25c499..0aac6f58658 100644
--- a/source/blender/freestyle/intern/stroke/Modifiers.h
+++ b/source/blender/freestyle/intern/stroke/Modifiers.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_MODIFIERS_H__
-#define __FREESTYLE_MODIFIERS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -71,5 +70,3 @@ template<class Edge> struct TimestampModifier : public EdgeModifier<Edge> {
 };
 
 } /* namespace Freestyle */
-
-#endif  // MODIFIERS_H
diff --git a/source/blender/freestyle/intern/stroke/Module.h b/source/blender/freestyle/intern/stroke/Module.h
index 3e32361eb45..58c44751d91 100644
--- a/source/blender/freestyle/intern/stroke/Module.h
+++ b/source/blender/freestyle/intern/stroke/Module.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_MODULE_H__
-#define __FREESTYLE_MODULE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -76,5 +75,3 @@ class Module {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_MODULE_H__
diff --git a/source/blender/freestyle/intern/stroke/Operators.h b/source/blender/freestyle/intern/stroke/Operators.h
index 2da9d30f172..e721e9fb837 100644
--- a/source/blender/freestyle/intern/stroke/Operators.h
+++ b/source/blender/freestyle/intern/stroke/Operators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_OPERATORS_H__
-#define __FREESTYLE_OPERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -290,5 +289,3 @@ class Operators {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_OPERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/PSStrokeRenderer.h b/source/blender/freestyle/intern/stroke/PSStrokeRenderer.h
index 7ddd3d3e4c0..78aa17d26b6 100644
--- a/source/blender/freestyle/intern/stroke/PSStrokeRenderer.h
+++ b/source/blender/freestyle/intern/stroke/PSStrokeRenderer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PS_STROKE_RENDERER_H__
-#define __FREESTYLE_PS_STROKE_RENDERER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -55,5 +54,3 @@ class PSStrokeRenderer : public StrokeRenderer {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PS_STROKE_RENDERER_H__
diff --git a/source/blender/freestyle/intern/stroke/Predicates0D.h b/source/blender/freestyle/intern/stroke/Predicates0D.h
index 90b6d99f2db..89dbaeb339d 100644
--- a/source/blender/freestyle/intern/stroke/Predicates0D.h
+++ b/source/blender/freestyle/intern/stroke/Predicates0D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PREDICATES_0D_H__
-#define __FREESTYLE_PREDICATES_0D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -178,5 +177,3 @@ class FalseUP0D : public UnaryPredicate0D {
 }  // end of namespace Predicates0D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PREDICATES_0D_H__
diff --git a/source/blender/freestyle/intern/stroke/Predicates1D.h b/source/blender/freestyle/intern/stroke/Predicates1D.h
index 0ad4c69f869..a3953950d86 100644
--- a/source/blender/freestyle/intern/stroke/Predicates1D.h
+++ b/source/blender/freestyle/intern/stroke/Predicates1D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PREDICATES_1D_H__
-#define __FREESTYLE_PREDICATES_1D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -580,5 +579,3 @@ class ViewMapGradientNormBP1D : public BinaryPredicate1D {
 }  // end of namespace Predicates1D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PREDICATES_1D_H__
diff --git a/source/blender/freestyle/intern/stroke/QInformationMap.h b/source/blender/freestyle/intern/stroke/QInformationMap.h
index d3a4218f9d7..0f651a656bf 100644
--- a/source/blender/freestyle/intern/stroke/QInformationMap.h
+++ b/source/blender/freestyle/intern/stroke/QInformationMap.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_Q_INFORMATION_MAP_H__
-#define __FREESTYLE_Q_INFORMATION_MAP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -59,5 +58,3 @@ class QInformationMap : public InformationMap {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_Q_INFORMATION_MAP_H__
diff --git a/source/blender/freestyle/intern/stroke/Stroke.h b/source/blender/freestyle/intern/stroke/Stroke.h
index 7983e8cdde2..71753b25328 100644
--- a/source/blender/freestyle/intern/stroke/Stroke.h
+++ b/source/blender/freestyle/intern/stroke/Stroke.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_H__
-#define __FREESTYLE_STROKE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -894,5 +893,3 @@ Stroke::Stroke(InputVertexIterator iBegin, InputVertexIterator iEnd)
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h b/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h
index b8c96533a1c..4256cdebe86 100644
--- a/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h
+++ b/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
-#define __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -179,5 +178,3 @@ class vertex_iterator_base : public IteratorBase<Traits, BidirectionalIteratorTa
 }  // end of namespace StrokeInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeIO.h b/source/blender/freestyle/intern/stroke/StrokeIO.h
index ae38847f8cc..a0e59655eed 100644
--- a/source/blender/freestyle/intern/stroke/StrokeIO.h
+++ b/source/blender/freestyle/intern/stroke/StrokeIO.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_IO_H__
-#define __FREESTYLE_STROKE_IO_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -37,5 +36,3 @@ ostream &operator<<(ostream &out, const StrokeVertex &iStrokeVertex);
 ostream &operator<<(ostream &out, const Stroke &iStroke);
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_IO_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeIterators.h b/source/blender/freestyle/intern/stroke/StrokeIterators.h
index 71932d8487a..d4cbffd535e 100644
--- a/source/blender/freestyle/intern/stroke/StrokeIterators.h
+++ b/source/blender/freestyle/intern/stroke/StrokeIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_ITERATORS_H__
-#define __FREESTYLE_STROKE_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -232,5 +231,3 @@ class StrokeVertexIterator : public Interface0DIteratorNested {
 }  // end of namespace StrokeInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeLayer.h b/source/blender/freestyle/intern/stroke/StrokeLayer.h
index ecb98025875..2101e7732ce 100644
--- a/source/blender/freestyle/intern/stroke/StrokeLayer.h
+++ b/source/blender/freestyle/intern/stroke/StrokeLayer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_LAYER_H__
-#define __FREESTYLE_STROKE_LAYER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -102,5 +101,3 @@ class StrokeLayer {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_LAYER_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeRenderer.h b/source/blender/freestyle/intern/stroke/StrokeRenderer.h
index 67deb5eebf3..2fb08b880d9 100644
--- a/source/blender/freestyle/intern/stroke/StrokeRenderer.h
+++ b/source/blender/freestyle/intern/stroke/StrokeRenderer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_RENDERER_H__
-#define __FREESTYLE_STROKE_RENDERER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -142,5 +141,3 @@ class StrokeRenderer {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_RENDERER_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeRep.h b/source/blender/freestyle/intern/stroke/StrokeRep.h
index d6ee1d01279..09048b8e147 100644
--- a/source/blender/freestyle/intern/stroke/StrokeRep.h
+++ b/source/blender/freestyle/intern/stroke/StrokeRep.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_REP_H__
-#define __FREESTYLE_STROKE_REP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -278,5 +277,3 @@ class StrokeRep {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_REP_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeShader.h b/source/blender/freestyle/intern/stroke/StrokeShader.h
index 7b1f12a8c9d..f4984136747 100644
--- a/source/blender/freestyle/intern/stroke/StrokeShader.h
+++ b/source/blender/freestyle/intern/stroke/StrokeShader.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_SHADERS_H__
-#define __FREESTYLE_STROKE_SHADERS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -96,5 +95,3 @@ class StrokeShader {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_SHADERS_H__
diff --git a/source/blender/freestyle/intern/stroke/StrokeTesselator.h b/source/blender/freestyle/intern/stroke/StrokeTesselator.h
index 8cece705ed4..0c1efb873bc 100644
--- a/source/blender/freestyle/intern/stroke/StrokeTesselator.h
+++ b/source/blender/freestyle/intern/stroke/StrokeTesselator.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STROKE_TESSELATOR_H__
-#define __FREESTYLE_STROKE_TESSELATOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -73,5 +72,3 @@ class StrokeTesselator {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STROKE_TESSELATOR_H__
diff --git a/source/blender/freestyle/intern/stroke/StyleModule.h b/source/blender/freestyle/intern/stroke/StyleModule.h
index 6f03d903045..398e4c7ee77 100644
--- a/source/blender/freestyle/intern/stroke/StyleModule.h
+++ b/source/blender/freestyle/intern/stroke/StyleModule.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STYLE_MODULE_H__
-#define __FREESTYLE_STYLE_MODULE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -182,5 +181,3 @@ class StyleModule {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STYLE_MODULE_H__
diff --git a/source/blender/freestyle/intern/system/BaseIterator.h b/source/blender/freestyle/intern/system/BaseIterator.h
index 651f2bf4387..7792fded4cb 100644
--- a/source/blender/freestyle/intern/system/BaseIterator.h
+++ b/source/blender/freestyle/intern/system/BaseIterator.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_BASE_ITERATOR_H__
-#define __FREESTYLE_BASE_ITERATOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -103,5 +102,3 @@ template<class Traits, class IteratorTagTraits> class IteratorBase {
 };
 
 } /* namespace Freestyle */
-
-#endif  // BASEITERATOR_H
diff --git a/source/blender/freestyle/intern/system/BaseObject.h b/source/blender/freestyle/intern/system/BaseObject.h
index 335221223dc..76d30aa74e2 100644
--- a/source/blender/freestyle/intern/system/BaseObject.h
+++ b/source/blender/freestyle/intern/system/BaseObject.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_BASE_OBJECT_H__
-#define __FREESTYLE_BASE_OBJECT_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -72,5 +71,3 @@ class BaseObject {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_BASE_OBJECT_H__
diff --git a/source/blender/freestyle/intern/system/Cast.h b/source/blender/freestyle/intern/system/Cast.h
index 44fd86a9b43..db0defbae22 100644
--- a/source/blender/freestyle/intern/system/Cast.h
+++ b/source/blender/freestyle/intern/system/Cast.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CAST_H__
-#define __FREESTYLE_CAST_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -35,5 +34,3 @@ template<class T, class U> U *cast(T *in)
 }  // end of namespace Cast
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CAST_H__
diff --git a/source/blender/freestyle/intern/system/Exception.h b/source/blender/freestyle/intern/system/Exception.h
index 0efd136af8f..618c2171fb9 100644
--- a/source/blender/freestyle/intern/system/Exception.h
+++ b/source/blender/freestyle/intern/system/Exception.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_EXCEPTION_H__
-#define __FREESTYLE_EXCEPTION_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -62,5 +61,3 @@ class Exception {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_EXCEPTION_H__
diff --git a/source/blender/freestyle/intern/system/FreestyleConfig.h b/source/blender/freestyle/intern/system/FreestyleConfig.h
index 34db7121eaf..032da864e6c 100644
--- a/source/blender/freestyle/intern/system/FreestyleConfig.h
+++ b/source/blender/freestyle/intern/system/FreestyleConfig.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CONFIG_H__
-#define __FREESTYLE_CONFIG_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -43,5 +42,3 @@ static const string PATH_SEP(":");
 }  // end of namespace Config
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CONFIG_H__
diff --git a/source/blender/freestyle/intern/system/Id.h b/source/blender/freestyle/intern/system/Id.h
index 549def6cabb..f94e044de29 100644
--- a/source/blender/freestyle/intern/system/Id.h
+++ b/source/blender/freestyle/intern/system/Id.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ID_H__
-#define __FREESTYLE_ID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -138,5 +137,3 @@ inline std::ostream &operator<<(std::ostream &s, const Id &id)
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ID_H__
diff --git a/source/blender/freestyle/intern/system/Interpreter.h b/source/blender/freestyle/intern/system/Interpreter.h
index 911d03318e5..0a5c0302fe6 100644
--- a/source/blender/freestyle/intern/system/Interpreter.h
+++ b/source/blender/freestyle/intern/system/Interpreter.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_INTERPRETER_H__
-#define __FREESTYLE_INTERPRETER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -61,5 +60,3 @@ class Interpreter {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_INTERPRETER_H__
diff --git a/source/blender/freestyle/intern/system/Iterator.h b/source/blender/freestyle/intern/system/Iterator.h
index 75d49521f96..d2086f637d9 100644
--- a/source/blender/freestyle/intern/system/Iterator.h
+++ b/source/blender/freestyle/intern/system/Iterator.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ITERATOR_H__
-#define __FREESTYLE_ITERATOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -73,5 +72,3 @@ class Iterator {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ITERATOR_H__
diff --git a/source/blender/freestyle/intern/system/PointerSequence.h b/source/blender/freestyle/intern/system/PointerSequence.h
index d136632f060..c2301ee740d 100644
--- a/source/blender/freestyle/intern/system/PointerSequence.h
+++ b/source/blender/freestyle/intern/system/PointerSequence.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_POINTER_SEQUENCE_H__
-#define __FREESTYLE_POINTER_SEQUENCE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -91,5 +90,3 @@ template<typename C, typename T> class PointerSequence : public C {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_POINTER_SEQUENCE_H__
diff --git a/source/blender/freestyle/intern/system/Precision.h b/source/blender/freestyle/intern/system/Precision.h
index c6695f207cc..6a6435299ca 100644
--- a/source/blender/freestyle/intern/system/Precision.h
+++ b/source/blender/freestyle/intern/system/Precision.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PRECISION_H__
-#define __FREESTYLE_PRECISION_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -31,5 +30,3 @@ static const real M_EPSILON = 0.00000001;
 #endif  // SWIG
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PRECISION_H__
diff --git a/source/blender/freestyle/intern/system/ProgressBar.h b/source/blender/freestyle/intern/system/ProgressBar.h
index b3a1f98f15e..d7b02c48359 100644
--- a/source/blender/freestyle/intern/system/ProgressBar.h
+++ b/source/blender/freestyle/intern/system/ProgressBar.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PROGRESS_BAR_H__
-#define __FREESTYLE_PROGRESS_BAR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -92,5 +91,3 @@ class ProgressBar {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PROGRESS_BAR_H__
diff --git a/source/blender/freestyle/intern/system/PseudoNoise.h b/source/blender/freestyle/intern/system/PseudoNoise.h
index 53fe54754c8..38270016675 100644
--- a/source/blender/freestyle/intern/system/PseudoNoise.h
+++ b/source/blender/freestyle/intern/system/PseudoNoise.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PSEUDO_NOISE_H__
-#define __FREESTYLE_PSEUDO_NOISE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -56,5 +55,3 @@ class PseudoNoise {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PSEUDO_NOISE_H__
diff --git a/source/blender/freestyle/intern/system/PythonInterpreter.h b/source/blender/freestyle/intern/system/PythonInterpreter.h
index 8099ed63199..bae69aa0a42 100644
--- a/source/blender/freestyle/intern/system/PythonInterpreter.h
+++ b/source/blender/freestyle/intern/system/PythonInterpreter.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_PYTHON_INTERPRETER_H__
-#define __FREESTYLE_PYTHON_INTERPRETER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -147,5 +146,3 @@ class PythonInterpreter : public Interpreter {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_PYTHON_INTERPRETER_H__
diff --git a/source/blender/freestyle/intern/system/RandGen.h b/source/blender/freestyle/intern/system/RandGen.h
index 43f36b0a2fd..e514f4cfc9f 100644
--- a/source/blender/freestyle/intern/system/RandGen.h
+++ b/source/blender/freestyle/intern/system/RandGen.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_RAND_GEN_H__
-#define __FREESTYLE_RAND_GEN_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -46,5 +45,3 @@ class RandGen {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_RAND_GEN_H__
diff --git a/source/blender/freestyle/intern/system/RenderMonitor.h b/source/blender/freestyle/intern/system/RenderMonitor.h
index eef4683328b..5d543f32dfb 100644
--- a/source/blender/freestyle/intern/system/RenderMonitor.h
+++ b/source/blender/freestyle/intern/system/RenderMonitor.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_RENDER_MONITOR_H__
-#define __FREESTYLE_RENDER_MONITOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -71,5 +70,3 @@ class RenderMonitor {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_RENDER_MONITOR_H__
diff --git a/source/blender/freestyle/intern/system/StringUtils.h b/source/blender/freestyle/intern/system/StringUtils.h
index fd97ca5b032..dc63f20f294 100644
--- a/source/blender/freestyle/intern/system/StringUtils.h
+++ b/source/blender/freestyle/intern/system/StringUtils.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STRING_UTILS_H__
-#define __FREESTYLE_STRING_UTILS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -50,5 +49,3 @@ struct ltstr {
 }  // end of namespace StringUtils
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STRING_UTILS_H__
diff --git a/source/blender/freestyle/intern/system/TimeStamp.h b/source/blender/freestyle/intern/system/TimeStamp.h
index 2fbf83d226d..5560bf8be8d 100644
--- a/source/blender/freestyle/intern/system/TimeStamp.h
+++ b/source/blender/freestyle/intern/system/TimeStamp.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_TIME_STAMP_H__
-#define __FREESTYLE_TIME_STAMP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -70,5 +69,3 @@ class TimeStamp {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_TIME_STAMP_H__
diff --git a/source/blender/freestyle/intern/system/TimeUtils.h b/source/blender/freestyle/intern/system/TimeUtils.h
index 6d4c56ab15e..3c8a28e9e43 100644
--- a/source/blender/freestyle/intern/system/TimeUtils.h
+++ b/source/blender/freestyle/intern/system/TimeUtils.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_TIME_UTILS_H__
-#define __FREESTYLE_TIME_UTILS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -60,5 +59,3 @@ class Chronometer {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_TIME_UTILS_H__
diff --git a/source/blender/freestyle/intern/view_map/ArbitraryGridDensityProvider.h b/source/blender/freestyle/intern/view_map/ArbitraryGridDensityProvider.h
index 97aae3d653c..c2d843742df 100644
--- a/source/blender/freestyle/intern/view_map/ArbitraryGridDensityProvider.h
+++ b/source/blender/freestyle/intern/view_map/ArbitraryGridDensityProvider.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_ARBITRARY_GRID_DENSITY_PROVIDER_H__
-#define __FREESTYLE_ARBITRARY_GRID_DENSITY_PROVIDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -66,5 +65,3 @@ class ArbitraryGridDensityProviderFactory : public GridDensityProviderFactory {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_ARBITRARY_GRID_DENSITY_PROVIDER_H__
diff --git a/source/blender/freestyle/intern/view_map/AutoPtrHelper.h b/source/blender/freestyle/intern/view_map/AutoPtrHelper.h
index fb2a9d73d13..94fd80bc0fb 100644
--- a/source/blender/freestyle/intern/view_map/AutoPtrHelper.h
+++ b/source/blender/freestyle/intern/view_map/AutoPtrHelper.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_AUTOPTR_HELPER_H__
-#define __FREESTYLE_AUTOPTR_HELPER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -47,5 +46,3 @@ template<typename T> class AutoPtr : public std::unique_ptr<T> {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_AUTOPTR_HELPER_H__
diff --git a/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.h b/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.h
index f530cf35569..5336cc1ff97 100644
--- a/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.h
+++ b/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_AVERAGE_AREA_GRID_DENSITY_PROVIDER_H__
-#define __FREESTYLE_AVERAGE_AREA_GRID_DENSITY_PROVIDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -63,5 +62,3 @@ class AverageAreaGridDensityProviderFactory : public GridDensityProviderFactory
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_AVERAGE_AREA_GRID_DENSITY_PROVIDER_H__
diff --git a/source/blender/freestyle/intern/view_map/BoxGrid.h b/source/blender/freestyle/intern/view_map/BoxGrid.h
index 35b5e4d6b55..581ee0a2340 100644
--- a/source/blender/freestyle/intern/view_map/BoxGrid.h
+++ b/source/blender/freestyle/intern/view_map/BoxGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_BOX_GRID_H__
-#define __FREESTYLE_BOX_GRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -422,5 +421,3 @@ inline bool BoxGrid::insertOccluder(OccluderSource &source, OccluderData *&occlu
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_BOX_GRID_H__
diff --git a/source/blender/freestyle/intern/view_map/CulledOccluderSource.h b/source/blender/freestyle/intern/view_map/CulledOccluderSource.h
index 3457fb6ca10..2bb77bad0f7 100644
--- a/source/blender/freestyle/intern/view_map/CulledOccluderSource.h
+++ b/source/blender/freestyle/intern/view_map/CulledOccluderSource.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_CULLED_OCCLUDER_SOURCE_H__
-#define __FREESTYLE_CULLED_OCCLUDER_SOURCE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -57,5 +56,3 @@ class CulledOccluderSource : public OccluderSource {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_CULLED_OCCLUDER_SOURCE_H__
diff --git a/source/blender/freestyle/intern/view_map/FEdgeXDetector.h b/source/blender/freestyle/intern/view_map/FEdgeXDetector.h
index 2bcf2d3bee8..c4115ee00c4 100644
--- a/source/blender/freestyle/intern/view_map/FEdgeXDetector.h
+++ b/source/blender/freestyle/intern/view_map/FEdgeXDetector.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_FEDGE_X_DETECTOR_H__
-#define __FREESTYLE_FEDGE_X_DETECTOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -246,5 +245,3 @@ class FEdgeXDetector {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_FEDGE_X_DETECTOR_H__
diff --git a/source/blender/freestyle/intern/view_map/Functions0D.h b/source/blender/freestyle/intern/view_map/Functions0D.h
index 7149c1909fd..0364069b631 100644
--- a/source/blender/freestyle/intern/view_map/Functions0D.h
+++ b/source/blender/freestyle/intern/view_map/Functions0D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_FUNCTIONS_0D_H__
-#define __FREESTYLE_FUNCTIONS_0D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -509,5 +508,3 @@ ViewShape *getOccludeeF0D(Interface0DIterator &it);
 }  // end of namespace Functions0D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_FUNCTIONS_0D_H__
diff --git a/source/blender/freestyle/intern/view_map/Functions1D.h b/source/blender/freestyle/intern/view_map/Functions1D.h
index 20aa9f2a27f..9cf5527ee19 100644
--- a/source/blender/freestyle/intern/view_map/Functions1D.h
+++ b/source/blender/freestyle/intern/view_map/Functions1D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_FUNCTIONS_1D_H__
-#define __FREESTYLE_FUNCTIONS_1D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -638,5 +637,3 @@ void getShapeF1D(Interface1D &inter, set<ViewShape *> &oShapes);
 }  // end of namespace Functions1D
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_FUNCTIONS_1D_H__
diff --git a/source/blender/freestyle/intern/view_map/GridDensityProvider.h b/source/blender/freestyle/intern/view_map/GridDensityProvider.h
index 290d5b0cfba..e663f14d368 100644
--- a/source/blender/freestyle/intern/view_map/GridDensityProvider.h
+++ b/source/blender/freestyle/intern/view_map/GridDensityProvider.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_GRID_DENSITY_PROVIDER_H__
-#define __FREESTYLE_GRID_DENSITY_PROVIDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -167,5 +166,3 @@ class GridDensityProviderFactory {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_GRID_DENSITY_PROVIDER_H__
diff --git a/source/blender/freestyle/intern/view_map/HeuristicGridDensityProviderFactory.h b/source/blender/freestyle/intern/view_map/HeuristicGridDensityProviderFactory.h
index b32a284cb61..0ce62572092 100644
--- a/source/blender/freestyle/intern/view_map/HeuristicGridDensityProviderFactory.h
+++ b/source/blender/freestyle/intern/view_map/HeuristicGridDensityProviderFactory.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_HEURISTIC_GRID_DENSITY_PROVIDER_FACTORY_H__
-#define __FREESTYLE_HEURISTIC_GRID_DENSITY_PROVIDER_FACTORY_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -48,5 +47,3 @@ class HeuristicGridDensityProviderFactory : public GridDensityProviderFactory {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_HEURISTIC_GRID_DENSITY_PROVIDER_FACTORY_H__
diff --git a/source/blender/freestyle/intern/view_map/Interface0D.h b/source/blender/freestyle/intern/view_map/Interface0D.h
index 724a98f047f..6b4682cc862 100644
--- a/source/blender/freestyle/intern/view_map/Interface0D.h
+++ b/source/blender/freestyle/intern/view_map/Interface0D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_INTERFACE_0D_H__
-#define __FREESTYLE_INTERFACE_0D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -341,5 +340,3 @@ class Interface0DIterator : public Iterator {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_INTERFACE_0D_H__
diff --git a/source/blender/freestyle/intern/view_map/Interface1D.h b/source/blender/freestyle/intern/view_map/Interface1D.h
index ab489bff4c9..778deb20a60 100644
--- a/source/blender/freestyle/intern/view_map/Interface1D.h
+++ b/source/blender/freestyle/intern/view_map/Interface1D.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_INTERFACE_1D_H__
-#define __FREESTYLE_INTERFACE_1D_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -203,5 +202,3 @@ class Interface1D {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_INTERFACE_1D_H__
diff --git a/source/blender/freestyle/intern/view_map/OccluderSource.h b/source/blender/freestyle/intern/view_map/OccluderSource.h
index 07df3b95347..befde3c1b1b 100644
--- a/source/blender/freestyle/intern/view_map/OccluderSource.h
+++ b/source/blender/freestyle/intern/view_map/OccluderSource.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_OCCLUDER_SOURCE_H__
-#define __FREESTYLE_OCCLUDER_SOURCE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -70,5 +69,3 @@ class OccluderSource {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_OCCLUDER_SOURCE_H__
diff --git a/source/blender/freestyle/intern/view_map/Pow23GridDensityProvider.h b/source/blender/freestyle/intern/view_map/Pow23GridDensityProvider.h
index 52d57e3030e..fec869e0665 100644
--- a/source/blender/freestyle/intern/view_map/Pow23GridDensityProvider.h
+++ b/source/blender/freestyle/intern/view_map/Pow23GridDensityProvider.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_POW_23_GRID_DENSITY_PROVIDER_H__
-#define __FREESTYLE_POW_23_GRID_DENSITY_PROVIDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -64,5 +63,3 @@ class Pow23GridDensityProviderFactory : public GridDensityProviderFactory {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_POW_23_GRID_DENSITY_PROVIDER_H__
diff --git a/source/blender/freestyle/intern/view_map/Silhouette.h b/source/blender/freestyle/intern/view_map/Silhouette.h
index 8503836e0ca..6463cd7eb3e 100644
--- a/source/blender/freestyle/intern/view_map/Silhouette.h
+++ b/source/blender/freestyle/intern/view_map/Silhouette.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SILHOUETTE_H__
-#define __FREESTYLE_SILHOUETTE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -1958,5 +1957,3 @@ class SShape {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SILHOUETTE_H__
diff --git a/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h b/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h
index 79d863e81e7..124ef35e5b9 100644
--- a/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h
+++ b/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__
-#define __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -135,5 +134,3 @@ class SilhouetteGeomEngine {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__
diff --git a/source/blender/freestyle/intern/view_map/SphericalGrid.h b/source/blender/freestyle/intern/view_map/SphericalGrid.h
index e9074580fb9..0ef68d073ae 100644
--- a/source/blender/freestyle/intern/view_map/SphericalGrid.h
+++ b/source/blender/freestyle/intern/view_map/SphericalGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_SPHERICAL_GRID_H__
-#define __FREESTYLE_SPHERICAL_GRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -434,5 +433,3 @@ inline bool SphericalGrid::insertOccluder(OccluderSource &source, OccluderData *
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_SPHERICAL_GRID_H__
diff --git a/source/blender/freestyle/intern/view_map/SteerableViewMap.h b/source/blender/freestyle/intern/view_map/SteerableViewMap.h
index 537f07f44f4..65633fd85d4 100644
--- a/source/blender/freestyle/intern/view_map/SteerableViewMap.h
+++ b/source/blender/freestyle/intern/view_map/SteerableViewMap.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_STEERABLE_VIEW_MAP_H__
-#define __FREESTYLE_STEERABLE_VIEW_MAP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -156,5 +155,3 @@ class SteerableViewMap {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_STEERABLE_VIEW_MAP_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewEdgeXBuilder.h b/source/blender/freestyle/intern/view_map/ViewEdgeXBuilder.h
index b1934d08376..f6f54a2d87d 100644
--- a/source/blender/freestyle/intern/view_map/ViewEdgeXBuilder.h
+++ b/source/blender/freestyle/intern/view_map/ViewEdgeXBuilder.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_EDGE_X_BUILDER_H__
-#define __FREESTYLE_VIEW_EDGE_X_BUILDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -292,5 +291,3 @@ class ViewEdgeXBuilder {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_EDGE_X_BUILDER_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMap.h b/source/blender/freestyle/intern/view_map/ViewMap.h
index 83c45be8c61..e5e49f17ca5 100644
--- a/source/blender/freestyle/intern/view_map/ViewMap.h
+++ b/source/blender/freestyle/intern/view_map/ViewMap.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_H__
-#define __FREESTYLE_VIEW_MAP_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -1830,5 +1829,3 @@ inline real ViewEdge::curvature2d_as_angle(int iCombination) const
 #endif
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h b/source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h
index 2ff46e353f3..25d8439173b 100644
--- a/source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h
+++ b/source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_ADVANCED_ITERATORS_H__
-#define __FREESTYLE_VIEW_MAP_ADVANCED_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -816,5 +815,3 @@ class vertex_iterator_base : public IteratorBase<Traits, BidirectionalIteratorTa
 }  // end of namespace ViewEdgeInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_ADVANCED_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMapBuilder.h b/source/blender/freestyle/intern/view_map/ViewMapBuilder.h
index a5d967af331..6d919f5561a 100644
--- a/source/blender/freestyle/intern/view_map/ViewMapBuilder.h
+++ b/source/blender/freestyle/intern/view_map/ViewMapBuilder.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_BUILDER_H__
-#define __FREESTYLE_VIEW_MAP_BUILDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -284,5 +283,3 @@ class ViewMapBuilder {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_BUILDER_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMapIO.h b/source/blender/freestyle/intern/view_map/ViewMapIO.h
index 98d27852c8d..e4c42c094d0 100644
--- a/source/blender/freestyle/intern/view_map/ViewMapIO.h
+++ b/source/blender/freestyle/intern/view_map/ViewMapIO.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_IO_H__
-#define __FREESTYLE_VIEW_MAP_IO_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -102,5 +101,3 @@ template<> istream &read<0>(istream &in, char *)
 }  // End of namespace ViewMapIO
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_IO_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMapIterators.h b/source/blender/freestyle/intern/view_map/ViewMapIterators.h
index 174e25896cc..9956d47469d 100644
--- a/source/blender/freestyle/intern/view_map/ViewMapIterators.h
+++ b/source/blender/freestyle/intern/view_map/ViewMapIterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_ITERATORS_H__
-#define __FREESTYLE_VIEW_MAP_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -590,5 +589,3 @@ class ViewEdgeIterator : public Iterator {
 }  // end of namespace ViewEdgeInternal
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_ITERATORS_H__
diff --git a/source/blender/freestyle/intern/view_map/ViewMapTesselator.h b/source/blender/freestyle/intern/view_map/ViewMapTesselator.h
index b6bf51618d8..c6690b1d9dc 100644
--- a/source/blender/freestyle/intern/view_map/ViewMapTesselator.h
+++ b/source/blender/freestyle/intern/view_map/ViewMapTesselator.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_VIEW_MAP_TESSELATOR_H__
-#define __FREESTYLE_VIEW_MAP_TESSELATOR_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -225,5 +224,3 @@ NodeGroup *ViewMapTesselator::Tesselate(ViewEdgesIterator begin, ViewEdgesIterat
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_VIEW_MAP_TESSELATOR_H__
diff --git a/source/blender/freestyle/intern/winged_edge/Curvature.h b/source/blender/freestyle/intern/winged_edge/Curvature.h
index 32e9ea8b5cf..9ecc92df2ac 100644
--- a/source/blender/freestyle/intern/winged_edge/Curvature.h
+++ b/source/blender/freestyle/intern/winged_edge/Curvature.h
@@ -27,8 +27,7 @@
  *         FRANCE
  */
 
-#ifndef __FREESTYLE_CURVATURE_H__
-#define __FREESTYLE_CURVATURE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -142,5 +141,3 @@ void compute_curvature_tensor_one_ring(WVertex *start, NormalCycle &nc);
 }  // namespace OGF
 
 } /* namespace Freestyle */
-
-#endif /* __FREESTYLE_CURVATURE_H__ */
diff --git a/source/blender/freestyle/intern/winged_edge/Nature.h b/source/blender/freestyle/intern/winged_edge/Nature.h
index 91f9f63b412..68323d7122c 100644
--- a/source/blender/freestyle/intern/winged_edge/Nature.h
+++ b/source/blender/freestyle/intern/winged_edge/Nature.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_NATURE_H__
-#define __FREESTYLE_NATURE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -67,5 +66,3 @@ static const EdgeNature EDGE_MARK = (1 << 7);  // 128
 }  // end of namespace Nature
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_NATURE_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WEdge.h b/source/blender/freestyle/intern/winged_edge/WEdge.h
index 424cd76a6b7..42a8e62990f 100644
--- a/source/blender/freestyle/intern/winged_edge/WEdge.h
+++ b/source/blender/freestyle/intern/winged_edge/WEdge.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_W_EDGE_H__
-#define __FREESTYLE_W_EDGE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -1428,5 +1427,3 @@ inline void WOEdge::setVecAndAngle()
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_W_EDGE_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WFillGrid.h b/source/blender/freestyle/intern/winged_edge/WFillGrid.h
index 918c1f154f3..095a58675c0 100644
--- a/source/blender/freestyle/intern/winged_edge/WFillGrid.h
+++ b/source/blender/freestyle/intern/winged_edge/WFillGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_W_FILL_GRID_H__
-#define __FREESTYLE_W_FILL_GRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -85,5 +84,3 @@ class WFillGrid {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_W_FILL_GRID_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WSFillGrid.h b/source/blender/freestyle/intern/winged_edge/WSFillGrid.h
index e3deebcd6c2..5393f57d2cd 100644
--- a/source/blender/freestyle/intern/winged_edge/WSFillGrid.h
+++ b/source/blender/freestyle/intern/winged_edge/WSFillGrid.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_WS_FILL_GRID_H__
-#define __FREESTYLE_WS_FILL_GRID_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -81,5 +80,3 @@ class WSFillGrid {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_WS_FILL_GRID_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WXEdge.h b/source/blender/freestyle/intern/winged_edge/WXEdge.h
index 21418c44614..8fe99f9bb93 100644
--- a/source/blender/freestyle/intern/winged_edge/WXEdge.h
+++ b/source/blender/freestyle/intern/winged_edge/WXEdge.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_WX_EDGE_H__
-#define __FREESTYLE_WX_EDGE_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -845,5 +844,3 @@ bool WXVertex::isFeature()
 }
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_WX_EDGE_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WXEdgeBuilder.h b/source/blender/freestyle/intern/winged_edge/WXEdgeBuilder.h
index d223cee5e0e..efba18eb084 100644
--- a/source/blender/freestyle/intern/winged_edge/WXEdgeBuilder.h
+++ b/source/blender/freestyle/intern/winged_edge/WXEdgeBuilder.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_WX_EDGE_BUILDER_H__
-#define __FREESTYLE_WX_EDGE_BUILDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -48,5 +47,3 @@ class WXEdgeBuilder : public WingedEdgeBuilder {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_WX_EDGE_BUILDER_H__
diff --git a/source/blender/freestyle/intern/winged_edge/WingedEdgeBuilder.h b/source/blender/freestyle/intern/winged_edge/WingedEdgeBuilder.h
index 5c728dea1d8..8cf86a421b7 100644
--- a/source/blender/freestyle/intern/winged_edge/WingedEdgeBuilder.h
+++ b/source/blender/freestyle/intern/winged_edge/WingedEdgeBuilder.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FREESTYLE_WINGED_EDGE_BUILDER_H__
-#define __FREESTYLE_WINGED_EDGE_BUILDER_H__
+#pragma once
 
 /** \file
  * \ingroup freestyle
@@ -174,5 +173,3 @@ class WingedEdgeBuilder : public SceneVisitor {
 };
 
 } /* namespace Freestyle */
-
-#endif  // __FREESTYLE_WINGED_EDGE_BUILDER_H__
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