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

50 files changed, 50 insertions, 200 deletions

diff --git a/source/blender/bmesh/bmesh.h b/source/blender/bmesh/bmesh.h
index c1f4b9daf27..5f5d6baaba2 100644
--- a/source/blender/bmesh/bmesh.h
+++ b/source/blender/bmesh/bmesh.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_H__
-#define __BMESH_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -231,5 +230,3 @@ extern "C" {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __BMESH_H__ */
diff --git a/source/blender/bmesh/bmesh_class.h b/source/blender/bmesh/bmesh_class.h
index 1393e24e48e..edb355993c1 100644
--- a/source/blender/bmesh/bmesh_class.h
+++ b/source/blender/bmesh/bmesh_class.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_CLASS_H__
-#define __BMESH_CLASS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -472,5 +471,3 @@ typedef bool (*BMLoopFilterFunc)(const BMLoop *, void *user_data);
 #else
 #  define BM_OMP_LIMIT 10000
 #endif
-
-#endif /* __BMESH_CLASS_H__ */
diff --git a/source/blender/bmesh/bmesh_tools.h b/source/blender/bmesh/bmesh_tools.h
index 4593f34792b..ee53cb9804d 100644
--- a/source/blender/bmesh/bmesh_tools.h
+++ b/source/blender/bmesh/bmesh_tools.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_TOOLS_H__
-#define __BMESH_TOOLS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -45,5 +44,3 @@ extern "C" {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __BMESH_TOOLS_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_callback_generic.h b/source/blender/bmesh/intern/bmesh_callback_generic.h
index 5191bd31873..3f3a48fd546 100644
--- a/source/blender/bmesh/intern/bmesh_callback_generic.h
+++ b/source/blender/bmesh/intern/bmesh_callback_generic.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_CALLBACK_GENERIC_H__
-#define __BMESH_CALLBACK_GENERIC_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -35,5 +34,3 @@ bool BM_elem_cb_check_elem_not_equal(BMElem *ele, void *user_data);
 
 #define BM_elem_cb_check_hflag_disabled_simple(type, hflag_n) \
   (bool (*)(type, void *)) BM_elem_cb_check_hflag_disabled, POINTER_FROM_UINT(hflag_n)
-
-#endif /* __BMESH_CALLBACK_GENERIC_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_construct.h b/source/blender/bmesh/intern/bmesh_construct.h
index ae2b137d38a..3523c4aec1a 100644
--- a/source/blender/bmesh/intern/bmesh_construct.h
+++ b/source/blender/bmesh/intern/bmesh_construct.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_CONSTRUCT_H__
-#define __BMESH_CONSTRUCT_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -78,5 +77,3 @@ char BM_vert_flag_from_mflag(const char mflag);
 char BM_face_flag_to_mflag(BMFace *f);
 short BM_edge_flag_to_mflag(BMEdge *e);
 char BM_vert_flag_to_mflag(BMVert *v);
-
-#endif /* __BMESH_CONSTRUCT_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_core.h b/source/blender/bmesh/intern/bmesh_core.h
index 3308f93d5d3..0e19437a527 100644
--- a/source/blender/bmesh/intern/bmesh_core.h
+++ b/source/blender/bmesh/intern/bmesh_core.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_CORE_H__
-#define __BMESH_CORE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -128,5 +127,3 @@ BMFace *bmesh_kernel_join_face_kill_edge(BMesh *bm, BMFace *f1, BMFace *f2, BMEd
 BMVert *bmesh_kernel_unglue_region_make_vert(BMesh *bm, BMLoop *l_sep);
 BMVert *bmesh_kernel_unglue_region_make_vert_multi(BMesh *bm, BMLoop **larr, int larr_len);
 BMVert *bmesh_kernel_unglue_region_make_vert_multi_isolated(BMesh *bm, BMLoop *l_sep);
-
-#endif /* __BMESH_CORE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_delete.h b/source/blender/bmesh/intern/bmesh_delete.h
index d41f26baddd..fcbcb8a90fc 100644
--- a/source/blender/bmesh/intern/bmesh_delete.h
+++ b/source/blender/bmesh/intern/bmesh_delete.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_DELETE_H__
-#define __BMESH_DELETE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -26,5 +25,3 @@ void BM_mesh_delete_hflag_tagged(BMesh *bm, const char hflag, const char htype);
 
 void BMO_mesh_delete_oflag_context(BMesh *bm, const short oflag, const int type);
 void BM_mesh_delete_hflag_context(BMesh *bm, const char hflag, const int type);
-
-#endif /* __BMESH_DELETE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_edgeloop.h b/source/blender/bmesh/intern/bmesh_edgeloop.h
index 4c76ea4f9cf..2e5c4d0193e 100644
--- a/source/blender/bmesh/intern/bmesh_edgeloop.h
+++ b/source/blender/bmesh/intern/bmesh_edgeloop.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __BMESH_EDGELOOP_H__
-#define __BMESH_EDGELOOP_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -84,5 +83,3 @@ bool BM_edgeloop_overlap_check(struct BMEdgeLoopStore *el_store_a,
 #define BM_EDGELOOP_NEXT(el_store) \
   (CHECK_TYPE_INLINE(el_store, struct BMEdgeLoopStore *), \
    (struct BMEdgeLoopStore *)((LinkData *)el_store)->next)
-
-#endif /* __BMESH_EDGELOOP_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_error.h b/source/blender/bmesh/intern/bmesh_error.h
index 289b603d134..2307377fd71 100644
--- a/source/blender/bmesh/intern/bmesh_error.h
+++ b/source/blender/bmesh/intern/bmesh_error.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_ERROR_H__
-#define __BMESH_ERROR_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -84,5 +83,3 @@ enum {
                     _BMESH_DUMMY_ABORT(), \
                     NULL)) : \
                   NULL)
-
-#endif /* __BMESH_ERROR_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_inline.h b/source/blender/bmesh/intern/bmesh_inline.h
index 13691776a27..203f44a540d 100644
--- a/source/blender/bmesh/intern/bmesh_inline.h
+++ b/source/blender/bmesh/intern/bmesh_inline.h
@@ -20,8 +20,7 @@
  * BM Inline functions.
  */
 
-#ifndef __BMESH_INLINE_H__
-#define __BMESH_INLINE_H__
+#pragma once
 
 /* stuff for dealing with header flags */
 #define BM_elem_flag_test(ele, hflag) _bm_elem_flag_test(&(ele)->head, hflag)
@@ -135,5 +134,3 @@ BLI_INLINE int _bm_elem_index_get(const BMHeader *head)
 {
   return head->index;
 }
-
-#endif /* __BMESH_INLINE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_interp.h b/source/blender/bmesh/intern/bmesh_interp.h
index bd3824ed3fd..0399b796cfd 100644
--- a/source/blender/bmesh/intern/bmesh_interp.h
+++ b/source/blender/bmesh/intern/bmesh_interp.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_INTERP_H__
-#define __BMESH_INTERP_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -82,5 +81,3 @@ void BM_vert_loop_groups_data_layer_merge_weights(BMesh *bm,
                                                   struct LinkNode *groups,
                                                   const int layer_n,
                                                   const float *loop_weights);
-
-#endif /* __BMESH_INTERP_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_iterators.h b/source/blender/bmesh/intern/bmesh_iterators.h
index a809c9a3d32..9314e23b21f 100644
--- a/source/blender/bmesh/intern/bmesh_iterators.h
+++ b/source/blender/bmesh/intern/bmesh_iterators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_ITERATORS_H__
-#define __BMESH_ITERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -252,5 +251,3 @@ BMITER_CB_DEF(loop_of_face);
   (BM_ITER_CHECK_TYPE_DATA(data), BM_iter_new(iter, bm, itype, data))
 #define BM_iter_init(iter, bm, itype, data) \
   (BM_ITER_CHECK_TYPE_DATA(data), BM_iter_init(iter, bm, itype, data))
-
-#endif /* __BMESH_ITERATORS_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_iterators_inline.h b/source/blender/bmesh/intern/bmesh_iterators_inline.h
index 4b9fbf52630..c384fb03cd9 100644
--- a/source/blender/bmesh/intern/bmesh_iterators_inline.h
+++ b/source/blender/bmesh/intern/bmesh_iterators_inline.h
@@ -20,8 +20,7 @@
  * BMesh inline iterator functions.
  */
 
-#ifndef __BMESH_ITERATORS_INLINE_H__
-#define __BMESH_ITERATORS_INLINE_H__
+#pragma once
 
 /* inline here optimizes out the switch statement when called with
  * constant values (which is very common), nicer for loop-in-loop situations */
@@ -210,5 +209,3 @@ BLI_INLINE void BM_iter_parallel(BMesh *bm,
 }
 
 #endif /* __BLI_TASK_H__ */
-
-#endif /* __BMESH_ITERATORS_INLINE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_log.h b/source/blender/bmesh/intern/bmesh_log.h
index 25c58132802..5c0ca78bddf 100644
--- a/source/blender/bmesh/intern/bmesh_log.h
+++ b/source/blender/bmesh/intern/bmesh_log.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_LOG_H__
-#define __BMESH_LOG_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -98,5 +97,3 @@ void BM_log_original_vert_data(BMLog *log, BMVert *v, const float **r_co, const
 /* For internal use only (unit testing) */
 BMLogEntry *BM_log_current_entry(BMLog *log);
 struct RangeTreeUInt *BM_log_unused_ids(BMLog *log);
-
-#endif
diff --git a/source/blender/bmesh/intern/bmesh_marking.h b/source/blender/bmesh/intern/bmesh_marking.h
index 06314a7a388..958980bdc23 100644
--- a/source/blender/bmesh/intern/bmesh_marking.h
+++ b/source/blender/bmesh/intern/bmesh_marking.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_MARKING_H__
-#define __BMESH_MARKING_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -137,5 +136,3 @@ void BM_select_history_merge_from_targetmap(
   (bm)->selected = _bm_prev_selected; \
   } \
   (void)0
-
-#endif /* __BMESH_MARKING_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_mesh.h b/source/blender/bmesh/intern/bmesh_mesh.h
index 0d665f1d391..a6b8b629ddf 100644
--- a/source/blender/bmesh/intern/bmesh_mesh.h
+++ b/source/blender/bmesh/intern/bmesh_mesh.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_MESH_H__
-#define __BMESH_MESH_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -171,5 +170,3 @@ void BM_mesh_vert_coords_apply(BMesh *bm, const float (*orco)[3]);
 void BM_mesh_vert_coords_apply_with_mat4(BMesh *bm,
                                          const float (*vert_coords)[3],
                                          const float mat[4][4]);
-
-#endif /* __BMESH_MESH_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_mesh_convert.h b/source/blender/bmesh/intern/bmesh_mesh_convert.h
index 1ad43558c60..1b5d001d35d 100644
--- a/source/blender/bmesh/intern/bmesh_mesh_convert.h
+++ b/source/blender/bmesh/intern/bmesh_mesh_convert.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __BMESH_MESH_CONV_H__
-#define __BMESH_MESH_CONV_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -71,5 +70,3 @@ void BM_mesh_bm_to_me_for_eval(BMesh *bm,
                                struct Mesh *me,
                                const struct CustomData_MeshMasks *cd_mask_extra)
     ATTR_NONNULL(1, 2);
-
-#endif /* __BMESH_MESH_CONV_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_mesh_duplicate.h b/source/blender/bmesh/intern/bmesh_mesh_duplicate.h
index 17d4071b69f..8ace555d61f 100644
--- a/source/blender/bmesh/intern/bmesh_mesh_duplicate.h
+++ b/source/blender/bmesh/intern/bmesh_mesh_duplicate.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_MESH_DUPLICATE_H__
-#define __BMESH_MESH_DUPLICATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -29,5 +28,3 @@ void BM_mesh_copy_arrays(BMesh *bm_src,
                          uint edges_src_len,
                          BMFace **faces_src,
                          uint faces_src_len);
-
-#endif /* __BMESH_MESH_DUPLICATE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_mesh_validate.h b/source/blender/bmesh/intern/bmesh_mesh_validate.h
index 32bb4fb023b..2112e1f3200 100644
--- a/source/blender/bmesh/intern/bmesh_mesh_validate.h
+++ b/source/blender/bmesh/intern/bmesh_mesh_validate.h
@@ -17,13 +17,10 @@
  * All rights reserved.
  */
 
-#ifndef __BMESH_MESH_VALIDATE_H__
-#define __BMESH_MESH_VALIDATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
  */
 
 bool BM_mesh_validate(BMesh *bm);
-
-#endif /* __BMESH_MESH_VALIDATE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_mods.h b/source/blender/bmesh/intern/bmesh_mods.h
index 36cb85bc9bc..8099d1dd603 100644
--- a/source/blender/bmesh/intern/bmesh_mods.h
+++ b/source/blender/bmesh/intern/bmesh_mods.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_MODS_H__
-#define __BMESH_MODS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -94,5 +93,3 @@ enum {
 BMVert *BM_face_loop_separate(BMesh *bm, BMLoop *l_sep);
 BMVert *BM_face_loop_separate_multi_isolated(BMesh *bm, BMLoop *l_sep);
 BMVert *BM_face_loop_separate_multi(BMesh *bm, BMLoop **larr, int larr_len);
-
-#endif /* __BMESH_MODS_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_operator_api.h b/source/blender/bmesh/intern/bmesh_operator_api.h
index 5af812d1b1d..a9282b8e5d0 100644
--- a/source/blender/bmesh/intern/bmesh_operator_api.h
+++ b/source/blender/bmesh/intern/bmesh_operator_api.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_OPERATOR_API_H__
-#define __BMESH_OPERATOR_API_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -668,5 +667,3 @@ int BMO_opcode_from_opname(const char *opname);
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __BMESH_OPERATOR_API_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_operator_api_inline.h b/source/blender/bmesh/intern/bmesh_operator_api_inline.h
index 2bda2d121c2..43628f01bc8 100644
--- a/source/blender/bmesh/intern/bmesh_operator_api_inline.h
+++ b/source/blender/bmesh/intern/bmesh_operator_api_inline.h
@@ -20,8 +20,7 @@
  * BMesh inline operator functions.
  */
 
-#ifndef __BMESH_OPERATOR_API_INLINE_H__
-#define __BMESH_OPERATOR_API_INLINE_H__
+#pragma once
 
 /* tool flag API. never, ever ever should tool code put junk in
  * header flags (element->head.flag), nor should they use
@@ -236,5 +235,3 @@ ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1) BLI_INLINE
 
   return NULL;
 }
-
-#endif /* __BMESH_OPERATOR_API_INLINE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_operators.h b/source/blender/bmesh/intern/bmesh_operators.h
index c0e59758120..2f7d91c78c4 100644
--- a/source/blender/bmesh/intern/bmesh_operators.h
+++ b/source/blender/bmesh/intern/bmesh_operators.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_OPERATORS_H__
-#define __BMESH_OPERATORS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -193,5 +192,3 @@ void BM_mesh_calc_uvs_cone(BMesh *bm,
 void BM_mesh_calc_uvs_cube(BMesh *bm, const short oflag);
 
 #include "intern/bmesh_operator_api_inline.h"
-
-#endif /* __BMESH_OPERATORS_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_operators_private.h b/source/blender/bmesh/intern/bmesh_operators_private.h
index 137c5aa338e..1c53c3d5c89 100644
--- a/source/blender/bmesh/intern/bmesh_operators_private.h
+++ b/source/blender/bmesh/intern/bmesh_operators_private.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_OPERATORS_PRIVATE_H__
-#define __BMESH_OPERATORS_PRIVATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -103,5 +102,3 @@ void bmo_triangulate_exec(BMesh *bm, BMOperator *op);
 void bmo_unsubdivide_exec(BMesh *bm, BMOperator *op);
 void bmo_weld_verts_exec(BMesh *bm, BMOperator *op);
 void bmo_wireframe_exec(BMesh *bm, BMOperator *op);
-
-#endif /* __BMESH_OPERATORS_PRIVATE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_polygon.h b/source/blender/bmesh/intern/bmesh_polygon.h
index 1611bc0b893..d9413e303e3 100644
--- a/source/blender/bmesh/intern/bmesh_polygon.h
+++ b/source/blender/bmesh/intern/bmesh_polygon.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_POLYGON_H__
-#define __BMESH_POLYGON_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -114,5 +113,3 @@ void BM_face_as_array_loop_quad(BMFace *f, BMLoop *r_loops[4]) ATTR_NONNULL();
 
 void BM_vert_tri_calc_tangent_edge(BMVert *verts[3], float r_tangent[3]);
 void BM_vert_tri_calc_tangent_edge_pair(BMVert *verts[3], float r_tangent[3]);
-
-#endif /* __BMESH_POLYGON_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_polygon_edgenet.h b/source/blender/bmesh/intern/bmesh_polygon_edgenet.h
index 38af944d0cd..6833f067421 100644
--- a/source/blender/bmesh/intern/bmesh_polygon_edgenet.h
+++ b/source/blender/bmesh/intern/bmesh_polygon_edgenet.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_POLYGON_EDGENET_H__
-#define __BMESH_POLYGON_EDGENET_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -37,5 +36,3 @@ bool BM_face_split_edgenet_connect_islands(BMesh *bm,
                                            BMEdge ***r_edge_net_new,
                                            uint *r_edge_net_new_len) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL(1, 2, 3, 6, 7, 8);
-
-#endif /* __BMESH_POLYGON_EDGENET_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_private.h b/source/blender/bmesh/intern/bmesh_private.h
index 8b4a59d5b9b..2c3bac6df33 100644
--- a/source/blender/bmesh/intern/bmesh_private.h
+++ b/source/blender/bmesh/intern/bmesh_private.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __BMESH_PRIVATE_H__
-#define __BMESH_PRIVATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -90,5 +89,3 @@ void poly_rotate_plane(const float normal[3], float (*verts)[3], const uint nver
 
 /* include the rest of our private declarations */
 #include "bmesh_structure.h"
-
-#endif /* __BMESH_PRIVATE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_query.h b/source/blender/bmesh/intern/bmesh_query.h
index 0d95efb778f..4ec6b0e50d1 100644
--- a/source/blender/bmesh/intern/bmesh_query.h
+++ b/source/blender/bmesh/intern/bmesh_query.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_QUERY_H__
-#define __BMESH_QUERY_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -273,5 +272,3 @@ int BM_mesh_calc_edge_groups_as_arrays(BMesh *bm,
 float bmesh_subd_falloff_calc(const int falloff, float val) ATTR_WARN_UNUSED_RESULT;
 
 #include "bmesh_query_inline.h"
-
-#endif /* __BMESH_QUERY_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_query_inline.h b/source/blender/bmesh/intern/bmesh_query_inline.h
index 90919cc361b..8b12ccace20 100644
--- a/source/blender/bmesh/intern/bmesh_query_inline.h
+++ b/source/blender/bmesh/intern/bmesh_query_inline.h
@@ -18,8 +18,7 @@
  * \ingroup bmesh
  */
 
-#ifndef __BMESH_QUERY_INLINE_H__
-#define __BMESH_QUERY_INLINE_H__
+#pragma once
 
 /**
  * Returns whether or not a given vertex is
@@ -152,5 +151,3 @@ ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1) BLI_INLINE bool BM_vert_is_wire_endpoint
   }
   return false;
 }
-
-#endif /* __BMESH_QUERY_INLINE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_query_uv.h b/source/blender/bmesh/intern/bmesh_query_uv.h
index 2558f814f32..3465a831bea 100644
--- a/source/blender/bmesh/intern/bmesh_query_uv.h
+++ b/source/blender/bmesh/intern/bmesh_query_uv.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_QUERY_UV_H__
-#define __BMESH_QUERY_UV_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -54,5 +53,3 @@ bool BM_loop_uv_share_vert_check(BMLoop *l_a,
                                  BMLoop *l_b,
                                  const int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL();
-
-#endif /* __BMESH_QUERY_UV_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_structure.h b/source/blender/bmesh/intern/bmesh_structure.h
index 38c75dec354..b3b9536618c 100644
--- a/source/blender/bmesh/intern/bmesh_structure.h
+++ b/source/blender/bmesh/intern/bmesh_structure.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __BMESH_STRUCTURE_H__
-#define __BMESH_STRUCTURE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -93,5 +92,3 @@ BMEdge *bmesh_disk_edge_exists(const BMVert *v1, const BMVert *v2) ATTR_WARN_UNU
 bool bmesh_disk_validate(int len, BMEdge *e, BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 
 #include "intern/bmesh_structure_inline.h"
-
-#endif /* __BMESH_STRUCTURE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_structure_inline.h b/source/blender/bmesh/intern/bmesh_structure_inline.h
index 26d161693af..85a84dde4ad 100644
--- a/source/blender/bmesh/intern/bmesh_structure_inline.h
+++ b/source/blender/bmesh/intern/bmesh_structure_inline.h
@@ -20,8 +20,7 @@
  * BMesh inline operator functions.
  */
 
-#ifndef __BMESH_STRUCTURE_INLINE_H__
-#define __BMESH_STRUCTURE_INLINE_H__
+#pragma once
 
 ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1, 2)
     BLI_INLINE BMDiskLink *bmesh_disk_edge_link_from_vert(const BMEdge *e, const BMVert *v)
@@ -72,5 +71,3 @@ ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1, 2) BLI_INLINE BMEdge *bmesh_disk_edge_pr
 {
   return BM_DISK_EDGE_PREV(e, v);
 }
-
-#endif /* __BMESH_STRUCTURE_INLINE_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_walkers.h b/source/blender/bmesh/intern/bmesh_walkers.h
index 0b862a5e9a1..a973e12a4c7 100644
--- a/source/blender/bmesh/intern/bmesh_walkers.h
+++ b/source/blender/bmesh/intern/bmesh_walkers.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_WALKERS_H__
-#define __BMESH_WALKERS_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -130,5 +129,3 @@ enum {
 
 /* use with BMW_init, so as not to confuse with restrict flags */
 #define BMW_NIL_LAY 0
-
-#endif /* __BMESH_WALKERS_H__ */
diff --git a/source/blender/bmesh/intern/bmesh_walkers_private.h b/source/blender/bmesh/intern/bmesh_walkers_private.h
index 3457a2b9187..721f3c2c65b 100644
--- a/source/blender/bmesh/intern/bmesh_walkers_private.h
+++ b/source/blender/bmesh/intern/bmesh_walkers_private.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_WALKERS_PRIVATE_H__
-#define __BMESH_WALKERS_PRIVATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -94,5 +93,3 @@ typedef struct BMwConnectedVertexWalker {
   BMwGenericWalker header;
   BMVert *curvert;
 } BMwConnectedVertexWalker;
-
-#endif /* __BMESH_WALKERS_PRIVATE_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_beautify.h b/source/blender/bmesh/tools/bmesh_beautify.h
index d2c67693f73..d0fef828e7c 100644
--- a/source/blender/bmesh/tools/bmesh_beautify.h
+++ b/source/blender/bmesh/tools/bmesh_beautify.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_BEAUTIFY_H__
-#define __BMESH_BEAUTIFY_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -42,5 +41,3 @@ float BM_verts_calc_rotate_beauty(const BMVert *v1,
                                   const BMVert *v4,
                                   const short flag,
                                   const short method);
-
-#endif /* __BMESH_BEAUTIFY_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_bevel.h b/source/blender/bmesh/tools/bmesh_bevel.h
index 317ca05b68a..de57e1c62a9 100644
--- a/source/blender/bmesh/tools/bmesh_bevel.h
+++ b/source/blender/bmesh/tools/bmesh_bevel.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_BEVEL_H__
-#define __BMESH_BEVEL_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -47,5 +46,3 @@ void BM_mesh_bevel(BMesh *bm,
                    const float smoothresh,
                    const struct CurveProfile *custom_profile,
                    const int vmesh_method);
-
-#endif /* __BMESH_BEVEL_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_bisect_plane.h b/source/blender/bmesh/tools/bmesh_bisect_plane.h
index ca6281be99f..f64b5d8097c 100644
--- a/source/blender/bmesh/tools/bmesh_bisect_plane.h
+++ b/source/blender/bmesh/tools/bmesh_bisect_plane.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_BISECT_PLANE_H__
-#define __BMESH_BISECT_PLANE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -28,5 +27,3 @@ void BM_mesh_bisect_plane(BMesh *bm,
                           const short oflag_center,
                           const short oflag_new,
                           const float eps);
-
-#endif /* __BMESH_BISECT_PLANE_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_decimate.h b/source/blender/bmesh/tools/bmesh_decimate.h
index 669eb629e70..c62288c269a 100644
--- a/source/blender/bmesh/tools/bmesh_decimate.h
+++ b/source/blender/bmesh/tools/bmesh_decimate.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_DECIMATE_H__
-#define __BMESH_DECIMATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -45,5 +44,3 @@ void BM_mesh_decimate_dissolve(BMesh *bm,
                                const float angle_limit,
                                const bool do_dissolve_boundaries,
                                const BMO_Delimit delimit);
-
-#endif /* __BMESH_DECIMATE_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_edgenet.h b/source/blender/bmesh/tools/bmesh_edgenet.h
index 5db0e1170f3..7855b2e2886 100644
--- a/source/blender/bmesh/tools/bmesh_edgenet.h
+++ b/source/blender/bmesh/tools/bmesh_edgenet.h
@@ -14,13 +14,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_EDGENET_H__
-#define __BMESH_EDGENET_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
  */
 
 void BM_mesh_edgenet(BMesh *bm, const bool use_edge_tag, const bool use_new_face_tag);
-
-#endif /* __BMESH_EDGENET_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_edgesplit.h b/source/blender/bmesh/tools/bmesh_edgesplit.h
index 0b3884ec888..4b8c07fc992 100644
--- a/source/blender/bmesh/tools/bmesh_edgesplit.h
+++ b/source/blender/bmesh/tools/bmesh_edgesplit.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_EDGESPLIT_H__
-#define __BMESH_EDGESPLIT_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -25,5 +24,3 @@ void BM_mesh_edgesplit(BMesh *bm,
                        const bool use_verts,
                        const bool tag_only,
                        const bool copy_select);
-
-#endif /* __BMESH_EDGESPLIT_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_intersect.h b/source/blender/bmesh/tools/bmesh_intersect.h
index cbbc74d3f82..adb88f2fd76 100644
--- a/source/blender/bmesh/tools/bmesh_intersect.h
+++ b/source/blender/bmesh/tools/bmesh_intersect.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_INTERSECT_H__
-#define __BMESH_INTERSECT_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -42,5 +41,3 @@ enum {
   BMESH_ISECT_BOOLEAN_UNION = 1,
   BMESH_ISECT_BOOLEAN_DIFFERENCE = 2,
 };
-
-#endif /* __BMESH_INTERSECT_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_intersect_edges.h b/source/blender/bmesh/tools/bmesh_intersect_edges.h
index 7e2252250d6..2736b7a52f9 100644
--- a/source/blender/bmesh/tools/bmesh_intersect_edges.h
+++ b/source/blender/bmesh/tools/bmesh_intersect_edges.h
@@ -18,10 +18,7 @@
  * \ingroup bmesh
  */
 
-#ifndef __BMESH_INTERSECT_EDGES_H__
-#define __BMESH_INTERSECT_EDGES_H__
+#pragma once
 
 bool BM_mesh_intersect_edges(
     BMesh *bm, const char hflag, const float dist, const bool split_faces, GHash *r_targetmap);
-
-#endif /* __BMESH_INTERSECT_EDGES_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_path.h b/source/blender/bmesh/tools/bmesh_path.h
index 6d22a7e7e07..79c3d3a5d63 100644
--- a/source/blender/bmesh/tools/bmesh_path.h
+++ b/source/blender/bmesh/tools/bmesh_path.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_PATH_H__
-#define __BMESH_PATH_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -49,5 +48,3 @@ struct LinkNode *BM_mesh_calc_path_face(BMesh *bm,
                                         bool (*filter_fn)(BMFace *, void *),
                                         void *user_data) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL(1, 2, 3, 5);
-
-#endif /* __BMESH_PATH_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_path_region.h b/source/blender/bmesh/tools/bmesh_path_region.h
index 5204aa45da2..99a5b4a0960 100644
--- a/source/blender/bmesh/tools/bmesh_path_region.h
+++ b/source/blender/bmesh/tools/bmesh_path_region.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_PATH_REGION_H__
-#define __BMESH_PATH_REGION_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -41,5 +40,3 @@ struct LinkNode *BM_mesh_calc_path_region_face(BMesh *bm,
                                                bool (*test_fn)(BMFace *, void *user_data),
                                                void *user_data) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL(1, 2, 3);
-
-#endif /* __BMESH_PATH_REGION_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_path_region_uv.h b/source/blender/bmesh/tools/bmesh_path_region_uv.h
index 16e627ab461..18fe977c9fa 100644
--- a/source/blender/bmesh/tools/bmesh_path_region_uv.h
+++ b/source/blender/bmesh/tools/bmesh_path_region_uv.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_PATH_REGION_UV_H__
-#define __BMESH_PATH_REGION_UV_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -44,5 +43,3 @@ struct LinkNode *BM_mesh_calc_path_uv_region_face(BMesh *bm,
                                                   bool (*test_fn)(BMFace *, void *user_data),
                                                   void *user_data) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL(1, 2, 3);
-
-#endif /* __BMESH_PATH_REGION_UV_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_path_uv.h b/source/blender/bmesh/tools/bmesh_path_uv.h
index c7c5768f7d0..5f35d2c1594 100644
--- a/source/blender/bmesh/tools/bmesh_path_uv.h
+++ b/source/blender/bmesh/tools/bmesh_path_uv.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_PATH_UV_H__
-#define __BMESH_PATH_UV_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -43,5 +42,3 @@ struct LinkNode *BM_mesh_calc_path_uv_face(BMesh *bm,
                                            bool (*filter_fn)(BMFace *, void *),
                                            void *user_data) ATTR_WARN_UNUSED_RESULT
     ATTR_NONNULL(1, 2, 3, 5);
-
-#endif /* __BMESH_PATH_UV_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_region_match.h b/source/blender/bmesh/tools/bmesh_region_match.h
index a0625543c51..799af938c31 100644
--- a/source/blender/bmesh/tools/bmesh_region_match.h
+++ b/source/blender/bmesh/tools/bmesh_region_match.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_REGION_MATCH_H__
-#define __BMESH_REGION_MATCH_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
@@ -25,5 +24,3 @@ int BM_mesh_region_match(BMesh *bm,
                          BMFace **faces_region,
                          uint faces_region_len,
                          ListBase *r_face_regions);
-
-#endif /* __BMESH_REGION_MATCH_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_separate.h b/source/blender/bmesh/tools/bmesh_separate.h
index 13293b155fd..9260903a8fa 100644
--- a/source/blender/bmesh/tools/bmesh_separate.h
+++ b/source/blender/bmesh/tools/bmesh_separate.h
@@ -14,13 +14,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BMESH_SEPARATE_H__
-#define __BMESH_SEPARATE_H__
+#pragma once
 
 /** \file
  * \ingroup bmesh
  */
 
 void BM_mesh_separate_faces(BMesh *bm, BMFaceFilterFunc filter_fn, void *user_data);
-
-#endif /* __BMESH_SEPARATE_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_triangulate.h b/source/blender/bmesh/tools/bmesh_triangulate.h
index ababd78f9a1..5353b315a38 100644
--- a/source/blender/bmesh/tools/bmesh_triangulate.h
+++ b/source/blender/bmesh/tools/bmesh_triangulate.h
@@ -20,8 +20,7 @@
  * Triangulate.
  */
 
-#ifndef __BMESH_TRIANGULATE_H__
-#define __BMESH_TRIANGULATE_H__
+#pragma once
 
 void BM_mesh_triangulate(BMesh *bm,
                          const int quad_method,
@@ -31,5 +30,3 @@ void BM_mesh_triangulate(BMesh *bm,
                          BMOperator *op,
                          BMOpSlot *slot_facemap_out,
                          BMOpSlot *slot_doubles_out);
-
-#endif /* __BMESH_TRIANGULATE_H__ */
diff --git a/source/blender/bmesh/tools/bmesh_wireframe.h b/source/blender/bmesh/tools/bmesh_wireframe.h
index 3be43b2e9f5..b2c2f5f5523 100644
--- a/source/blender/bmesh/tools/bmesh_wireframe.h
+++ b/source/blender/bmesh/tools/bmesh_wireframe.h
@@ -20,8 +20,7 @@
  * Wire Frame.
  */
 
-#ifndef __BMESH_WIREFRAME_H__
-#define __BMESH_WIREFRAME_H__
+#pragma once
 
 void BM_mesh_wireframe(BMesh *bm,
                        const float offset,
@@ -38,5 +37,3 @@ void BM_mesh_wireframe(BMesh *bm,
                        const short mat_offset,
                        const short mat_max,
                        const bool use_tag);
-
-#endif /* __BMESH_WIREFRAME_H__ */