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/imbuf/IMB_colormanagement.h               | 5 +----
 source/blender/imbuf/IMB_imbuf.h                         | 5 +----
 source/blender/imbuf/IMB_imbuf_types.h                   | 5 +----
 source/blender/imbuf/IMB_metadata.h                      | 5 +----
 source/blender/imbuf/IMB_moviecache.h                    | 5 +----
 source/blender/imbuf/IMB_thumbs.h                        | 5 +----
 source/blender/imbuf/intern/IMB_allocimbuf.h             | 5 +----
 source/blender/imbuf/intern/IMB_anim.h                   | 5 +----
 source/blender/imbuf/intern/IMB_colormanagement_intern.h | 5 +----
 source/blender/imbuf/intern/IMB_filetype.h               | 5 +----
 source/blender/imbuf/intern/IMB_filter.h                 | 5 +----
 source/blender/imbuf/intern/IMB_indexer.h                | 5 +----
 source/blender/imbuf/intern/cineon/cineonlib.h           | 5 +----
 source/blender/imbuf/intern/cineon/dpxlib.h              | 5 +----
 source/blender/imbuf/intern/cineon/logImageCore.h        | 5 +----
 source/blender/imbuf/intern/cineon/logmemfile.h          | 5 +----
 source/blender/imbuf/intern/dds/BlockDXT.h               | 5 +----
 source/blender/imbuf/intern/dds/Color.h                  | 5 +----
 source/blender/imbuf/intern/dds/ColorBlock.h             | 5 +----
 source/blender/imbuf/intern/dds/Common.h                 | 5 +----
 source/blender/imbuf/intern/dds/DirectDrawSurface.h      | 5 +----
 source/blender/imbuf/intern/dds/FlipDXT.h                | 5 +----
 source/blender/imbuf/intern/dds/Image.h                  | 5 +----
 source/blender/imbuf/intern/dds/PixelFormat.h            | 5 +----
 source/blender/imbuf/intern/dds/Stream.h                 | 5 +----
 source/blender/imbuf/intern/dds/dds_api.h                | 5 +----
 source/blender/imbuf/intern/imbuf.h                      | 5 +----
 source/blender/imbuf/intern/oiio/openimageio_api.h       | 5 +----
 source/blender/imbuf/intern/openexr/openexr_api.h        | 5 +----
 source/blender/imbuf/intern/openexr/openexr_multi.h      | 5 +----
 30 files changed, 30 insertions(+), 120 deletions(-)

(limited to 'source/blender/imbuf')

diff --git a/source/blender/imbuf/IMB_colormanagement.h b/source/blender/imbuf/IMB_colormanagement.h
index 4530f6c9fc0..54f126684ae 100644
--- a/source/blender/imbuf/IMB_colormanagement.h
+++ b/source/blender/imbuf/IMB_colormanagement.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __IMB_COLORMANAGEMENT_H__
-#define __IMB_COLORMANAGEMENT_H__
+#pragma once
 
 /** \file
  * \ingroup imbuf
@@ -374,5 +373,3 @@ enum {
 #endif
 
 #include "intern/colormanagement_inline.c"
-
-#endif /* __IMB_COLORMANAGEMENT_H__ */
diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index 478297e61b2..0f3d121ff96 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -53,8 +53,7 @@
  *     posix-compliant.
  */
 
-#ifndef __IMB_IMBUF_H__
-#define __IMB_IMBUF_H__
+#pragma once
 
 /* for bool */
 #include "../blenlib/BLI_sys_types.h"
@@ -766,5 +765,3 @@ void IMB_ImBufFromStereo3d(struct Stereo3dFormat *s3d,
 #ifdef __cplusplus
 }
 #endif
-
-#endif
diff --git a/source/blender/imbuf/IMB_imbuf_types.h b/source/blender/imbuf/IMB_imbuf_types.h
index ddc8394264a..98e9c34a4ff 100644
--- a/source/blender/imbuf/IMB_imbuf_types.h
+++ b/source/blender/imbuf/IMB_imbuf_types.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __IMB_IMBUF_TYPES_H__
-#define __IMB_IMBUF_TYPES_H__
+#pragma once
 
 #include "DNA_vec_types.h" /* for rcti */
 
@@ -353,5 +352,3 @@ enum {
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __IMB_IMBUF_TYPES_H__ */
diff --git a/source/blender/imbuf/IMB_metadata.h b/source/blender/imbuf/IMB_metadata.h
index edbdd7be482..501bf9dfba1 100644
--- a/source/blender/imbuf/IMB_metadata.h
+++ b/source/blender/imbuf/IMB_metadata.h
@@ -21,8 +21,7 @@
  * \ingroup imbuf
  */
 
-#ifndef __IMB_METADATA_H__
-#define __IMB_METADATA_H__
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -84,5 +83,3 @@ void IMB_metadata_foreach(struct ImBuf *ibuf, IMBMetadataForeachCb callback, voi
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __IMB_METADATA_H__ */
diff --git a/source/blender/imbuf/IMB_moviecache.h b/source/blender/imbuf/IMB_moviecache.h
index 5fb158f0d8b..8e5f15a64a0 100644
--- a/source/blender/imbuf/IMB_moviecache.h
+++ b/source/blender/imbuf/IMB_moviecache.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __IMB_MOVIECACHE_H__
-#define __IMB_MOVIECACHE_H__
+#pragma once
 
 /** \file
  * \ingroup imbuf
@@ -85,5 +84,3 @@ void *IMB_moviecacheIter_getUserKey(struct MovieCacheIter *iter);
 #ifdef __cplusplus
 }
 #endif
-
-#endif
diff --git a/source/blender/imbuf/IMB_thumbs.h b/source/blender/imbuf/IMB_thumbs.h
index 00e9a810ef3..e8c244aaba7 100644
--- a/source/blender/imbuf/IMB_thumbs.h
+++ b/source/blender/imbuf/IMB_thumbs.h
@@ -21,8 +21,7 @@
  * \ingroup imbuf
  */
 
-#ifndef __IMB_THUMBS_H__
-#define __IMB_THUMBS_H__
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -98,5 +97,3 @@ void IMB_thumb_path_unlock(const char *path);
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
-
-#endif /* __IMB_THUMBS_H__ */
diff --git a/source/blender/imbuf/intern/IMB_allocimbuf.h b/source/blender/imbuf/intern/IMB_allocimbuf.h
index 9f89969cf1c..08aa1936a6f 100644
--- a/source/blender/imbuf/intern/IMB_allocimbuf.h
+++ b/source/blender/imbuf/intern/IMB_allocimbuf.h
@@ -21,8 +21,7 @@
  * \ingroup imbuf
  * \brief Header file for allocimbuf.c
  */
-#ifndef __IMB_ALLOCIMBUF_H__
-#define __IMB_ALLOCIMBUF_H__
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -51,5 +50,3 @@ bool imb_enlargeencodedbufferImBuf(struct ImBuf *ibuf);
 #ifdef __cplusplus
 }
 #endif
-
-#endif
diff --git a/source/blender/imbuf/intern/IMB_anim.h b/source/blender/imbuf/intern/IMB_anim.h
index 3d1d99963c7..babff5c34cd 100644
--- a/source/blender/imbuf/intern/IMB_anim.h
+++ b/source/blender/imbuf/intern/IMB_anim.h
@@ -21,8 +21,7 @@
  * \ingroup imbuf
  */
 
-#ifndef __IMB_ANIM_H__
-#define __IMB_ANIM_H__
+#pragma once
 
 #ifdef _WIN32
 #  define INC_OLE2
@@ -152,5 +151,3 @@ struct anim {
 
   struct IDProperty *metadata;
 };
-
-#endif
diff --git a/source/blender/imbuf/intern/IMB_colormanagement_intern.h b/source/blender/imbuf/intern/IMB_colormanagement_intern.h
index 79abe8472b9..6b505a7171a 100644
--- a/source/blender/imbuf/intern/IMB_colormanagement_intern.h
+++ b/source/blender/imbuf/intern/IMB_colormanagement_intern.h
@@ -17,8 +17,7 @@
  * All rights reserved.
  */
 
-#ifndef __IMB_COLORMANAGEMENT_INTERN_H__
-#define __IMB_COLORMANAGEMENT_INTERN_H__
+#pragma once
 
 /** \file
  * \ingroup imbuf
@@ -130,5 +129,3 @@ void colormanage_imbuf_make_linear(struct ImBuf *ibuf, const char *from_colorspa
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __IMB_COLORMANAGEMENT_INTERN_H__ */
diff --git a/source/blender/imbuf/intern/IMB_filetype.h b/source/blender/imbuf/intern/IMB_filetype.h
index ce731a3a86d..2b00b87d3d2 100644
--- a/source/blender/imbuf/intern/IMB_filetype.h
+++ b/source/blender/imbuf/intern/IMB_filetype.h
@@ -18,8 +18,7 @@
  * \ingroup imbuf
  */
 
-#ifndef __IMB_FILETYPE_H__
-#define __IMB_FILETYPE_H__
+#pragma once
 
 #include "IMB_imbuf.h"
 
@@ -151,5 +150,3 @@ struct ImBuf *imb_loadtiff(const unsigned char *mem,
 void imb_loadtiletiff(
     struct ImBuf *ibuf, const unsigned char *mem, size_t size, int tx, int ty, unsigned int *rect);
 int imb_savetiff(struct ImBuf *ibuf, const char *name, int flags);
-
-#endif /* __IMB_FILETYPE_H__ */
diff --git a/source/blender/imbuf/intern/IMB_filter.h b/source/blender/imbuf/intern/IMB_filter.h
index 2cd785e6889..556362d78c1 100644
--- a/source/blender/imbuf/intern/IMB_filter.h
+++ b/source/blender/imbuf/intern/IMB_filter.h
@@ -22,8 +22,7 @@
  * \brief Function declarations for filter.c
  */
 
-#ifndef __IMB_FILTER_H__
-#define __IMB_FILTER_H__
+#pragma once
 
 struct ImBuf;
 
@@ -36,5 +35,3 @@ void IMB_unpremultiply_rect(unsigned int *rect, char planes, int w, int h);
 void IMB_unpremultiply_rect_float(float *rect_float, int channels, int w, int h);
 
 void imb_onehalf_no_alloc(struct ImBuf *ibuf2, struct ImBuf *ibuf1);
-
-#endif
diff --git a/source/blender/imbuf/intern/IMB_indexer.h b/source/blender/imbuf/intern/IMB_indexer.h
index 446aaa0655e..7cd11e137c2 100644
--- a/source/blender/imbuf/intern/IMB_indexer.h
+++ b/source/blender/imbuf/intern/IMB_indexer.h
@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __IMB_INDEXER_H__
-#define __IMB_INDEXER_H__
+#pragma once
 
 /** \file
  * \ingroup imbuf
@@ -113,5 +112,3 @@ struct anim_index *IMB_anim_open_index(struct anim *anim, IMB_Timecode_Type tc);
 
 int IMB_proxy_size_to_array_index(IMB_Proxy_Size pr_size);
 int IMB_timecode_to_array_index(IMB_Timecode_Type tc);
-
-#endif
diff --git a/source/blender/imbuf/intern/cineon/cineonlib.h b/source/blender/imbuf/intern/cineon/cineonlib.h
index 040435e44ee..d1225027b4c 100644
--- a/source/blender/imbuf/intern/cineon/cineonlib.h
+++ b/source/blender/imbuf/intern/cineon/cineonlib.h
@@ -23,8 +23,7 @@
  * Also handles DPX files (almost)
  */
 
-#ifndef __CINEONLIB_H__
-#define __CINEONLIB_H__
+#pragma once
 
 #include "logImageCore.h"
 
@@ -135,5 +134,3 @@ LogImageFile *cineonCreate(
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __CINEONLIB_H__ */
diff --git a/source/blender/imbuf/intern/cineon/dpxlib.h b/source/blender/imbuf/intern/cineon/dpxlib.h
index 3a7ebe9dddf..6b729dba59a 100644
--- a/source/blender/imbuf/intern/cineon/dpxlib.h
+++ b/source/blender/imbuf/intern/cineon/dpxlib.h
@@ -22,8 +22,7 @@
  * DPX image file format library definitions.
  */
 
-#ifndef __DPXLIB_H__
-#define __DPXLIB_H__
+#pragma once
 
 #include "logImageCore.h"
 
@@ -160,5 +159,3 @@ LogImageFile *dpxCreate(const char *filename,
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __DPXLIB_H__ */
diff --git a/source/blender/imbuf/intern/cineon/logImageCore.h b/source/blender/imbuf/intern/cineon/logImageCore.h
index 3d49da7eb42..a2d50f21a98 100644
--- a/source/blender/imbuf/intern/cineon/logImageCore.h
+++ b/source/blender/imbuf/intern/cineon/logImageCore.h
@@ -27,8 +27,7 @@
  * Hmm. I thought the two formats would have more in common!
  */
 
-#ifndef __LOGIMAGECORE_H__
-#define __LOGIMAGECORE_H__
+#pragma once
 
 #include <stdio.h>
 
@@ -295,5 +294,3 @@ BLI_INLINE unsigned int float_uint(float value, unsigned int max)
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __LOGIMAGECORE_H__ */
diff --git a/source/blender/imbuf/intern/cineon/logmemfile.h b/source/blender/imbuf/intern/cineon/logmemfile.h
index d0ca03193e5..fd67011ef30 100644
--- a/source/blender/imbuf/intern/cineon/logmemfile.h
+++ b/source/blender/imbuf/intern/cineon/logmemfile.h
@@ -22,8 +22,7 @@
  * Cineon image file format library routines.
  */
 
-#ifndef __LOGMEMFILE_H__
-#define __LOGMEMFILE_H__
+#pragma once
 
 #include "logImageCore.h"
 
@@ -35,5 +34,3 @@ int logimage_fread(void *buffer, size_t size, unsigned int count, LogImageFile *
 int logimage_read_uchar(unsigned char *x, LogImageFile *logFile);
 int logimage_read_ushort(unsigned short *x, LogImageFile *logFile);
 int logimage_read_uint(unsigned int *x, LogImageFile *logFile);
-
-#endif /* __LOGMEMFILE_H__ */
diff --git a/source/blender/imbuf/intern/dds/BlockDXT.h b/source/blender/imbuf/intern/dds/BlockDXT.h
index 57430dbaea2..70ec8808c61 100644
--- a/source/blender/imbuf/intern/dds/BlockDXT.h
+++ b/source/blender/imbuf/intern/dds/BlockDXT.h
@@ -48,8 +48,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef __BLOCKDXT_H__
-#define __BLOCKDXT_H__
+#pragma once
 
 #include <Color.h>
 #include <ColorBlock.h>
@@ -305,5 +304,3 @@ void mem_read(Stream &mem, BlockDXT5 &block);
 void mem_read(Stream &mem, BlockATI1 &block);
 void mem_read(Stream &mem, BlockATI2 &block);
 void mem_read(Stream &mem, BlockCTX1 &block);
-
-#endif /* __BLOCKDXT_H__ */
diff --git a/source/blender/imbuf/intern/dds/Color.h b/source/blender/imbuf/intern/dds/Color.h
index 36e2615759b..d0b67d4638c 100644
--- a/source/blender/imbuf/intern/dds/Color.h
+++ b/source/blender/imbuf/intern/dds/Color.h
@@ -27,8 +27,7 @@
 
 // This code is in the public domain -- castanyo@yahoo.es
 
-#ifndef __COLOR_H__
-#define __COLOR_H__
+#pragma once
 
 /// 32 bit color stored as BGRA.
 class Color32 {
@@ -116,5 +115,3 @@ class Color16 {
     unsigned short u;
   };
 };
-
-#endif /* __COLOR_H__ */
diff --git a/source/blender/imbuf/intern/dds/ColorBlock.h b/source/blender/imbuf/intern/dds/ColorBlock.h
index 2e8a6bbda7f..dd63286e230 100644
--- a/source/blender/imbuf/intern/dds/ColorBlock.h
+++ b/source/blender/imbuf/intern/dds/ColorBlock.h
@@ -27,8 +27,7 @@
 
 // This code is in the public domain -- castanyo@yahoo.es
 
-#ifndef __COLORBLOCK_H__
-#define __COLORBLOCK_H__
+#pragma once
 
 #include <Color.h>
 #include <Image.h>
@@ -91,5 +90,3 @@ inline Color32 &ColorBlock::color(uint x, uint y)
 {
   return m_color[y * 4 + x];
 }
-
-#endif /* __COLORBLOCK_H__ */
diff --git a/source/blender/imbuf/intern/dds/Common.h b/source/blender/imbuf/intern/dds/Common.h
index 56f5d54cf42..90ec347a9ad 100644
--- a/source/blender/imbuf/intern/dds/Common.h
+++ b/source/blender/imbuf/intern/dds/Common.h
@@ -18,8 +18,7 @@
  * \ingroup imbdds
  */
 
-#ifndef __COMMON_H__
-#define __COMMON_H__
+#pragma once
 
 #ifndef MIN
 #  define MIN(a, b) ((a) <= (b) ? (a) : (b))
@@ -49,5 +48,3 @@ inline uint computePitch(uint w, uint bitsize, uint alignment)
 {
   return ((w * bitsize + 8 * alignment - 1) / (8 * alignment)) * alignment;
 }
-
-#endif
diff --git a/source/blender/imbuf/intern/dds/DirectDrawSurface.h b/source/blender/imbuf/intern/dds/DirectDrawSurface.h
index f12c45d11df..ac7f893fddd 100644
--- a/source/blender/imbuf/intern/dds/DirectDrawSurface.h
+++ b/source/blender/imbuf/intern/dds/DirectDrawSurface.h
@@ -48,8 +48,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef __DIRECTDRAWSURFACE_H__
-#define __DIRECTDRAWSURFACE_H__
+#pragma once
 
 #include <ColorBlock.h>
 #include <Common.h>
@@ -184,5 +183,3 @@ void mem_read(Stream &mem, DDSPixelFormat &pf);
 void mem_read(Stream &mem, DDSCaps &caps);
 void mem_read(Stream &mem, DDSHeader &header);
 void mem_read(Stream &mem, DDSHeader10 &header);
-
-#endif /* __DIRECTDRAWSURFACE_H__ */
diff --git a/source/blender/imbuf/intern/dds/FlipDXT.h b/source/blender/imbuf/intern/dds/FlipDXT.h
index b7056742430..d35157251bd 100644
--- a/source/blender/imbuf/intern/dds/FlipDXT.h
+++ b/source/blender/imbuf/intern/dds/FlipDXT.h
@@ -14,13 +14,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __FLIPDXT_H__
-#define __FLIPDXT_H__
+#pragma once
 
 #include "BLI_sys_types.h"
 
 /* flip compressed DXT image vertically to fit OpenGL convention */
 int FlipDXTCImage(
     unsigned int width, unsigned int height, unsigned int levels, int fourcc, uint8_t *data);
-
-#endif
diff --git a/source/blender/imbuf/intern/dds/Image.h b/source/blender/imbuf/intern/dds/Image.h
index 2922d5cfda3..4ccfec99445 100644
--- a/source/blender/imbuf/intern/dds/Image.h
+++ b/source/blender/imbuf/intern/dds/Image.h
@@ -27,8 +27,7 @@
 
 // This code is in the public domain -- castanyo@yahoo.es
 
-#ifndef __IMAGE_H__
-#define __IMAGE_H__
+#pragma once
 
 #include "Color.h"
 #include "Common.h"
@@ -89,5 +88,3 @@ inline Color32 &Image::pixel(uint x, uint y)
 {
   return pixel(y * width() + x);
 }
-
-#endif /* __IMAGE_H__ */
diff --git a/source/blender/imbuf/intern/dds/PixelFormat.h b/source/blender/imbuf/intern/dds/PixelFormat.h
index 47585147dfb..a9125c64121 100644
--- a/source/blender/imbuf/intern/dds/PixelFormat.h
+++ b/source/blender/imbuf/intern/dds/PixelFormat.h
@@ -48,8 +48,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef __PIXELFORMAT_H__
-#define __PIXELFORMAT_H__
+#pragma once
 
 #include "Common.h"
 
@@ -126,5 +125,3 @@ inline float quantizeFloor(float f, int bits)
 #endif
 
 }  // namespace PixelFormat
-
-#endif /* __PIXELFORMAT_H__ */
diff --git a/source/blender/imbuf/intern/dds/Stream.h b/source/blender/imbuf/intern/dds/Stream.h
index 43cd6b56fb9..ad6b9165801 100644
--- a/source/blender/imbuf/intern/dds/Stream.h
+++ b/source/blender/imbuf/intern/dds/Stream.h
@@ -20,8 +20,7 @@
 
 /* simple memory stream functions with buffer overflow check */
 
-#ifndef __STREAM_H__
-#define __STREAM_H__
+#pragma once
 
 struct Stream {
   unsigned char *mem;  // location in memory
@@ -40,5 +39,3 @@ unsigned int mem_read(Stream &mem, unsigned int &i);
 unsigned int mem_read(Stream &mem, unsigned short &i);
 unsigned int mem_read(Stream &mem, unsigned char &i);
 unsigned int mem_read(Stream &mem, unsigned char *i, unsigned int cnt);
-
-#endif /* __STREAM_H__ */
diff --git a/source/blender/imbuf/intern/dds/dds_api.h b/source/blender/imbuf/intern/dds/dds_api.h
index e6782e217fc..930205c9efb 100644
--- a/source/blender/imbuf/intern/dds/dds_api.h
+++ b/source/blender/imbuf/intern/dds/dds_api.h
@@ -18,8 +18,7 @@
  * \ingroup imbdds
  */
 
-#ifndef __DDS_API_H__
-#define __DDS_API_H__
+#pragma once
 
 #include "../../IMB_imbuf.h"
 
@@ -37,5 +36,3 @@ struct ImBuf *imb_load_dds(const unsigned char *mem,
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __DDS_API_H */
diff --git a/source/blender/imbuf/intern/imbuf.h b/source/blender/imbuf/intern/imbuf.h
index 912c25f2616..309a911e9ca 100644
--- a/source/blender/imbuf/intern/imbuf.h
+++ b/source/blender/imbuf/intern/imbuf.h
@@ -21,8 +21,7 @@
  * \ingroup imbuf
  */
 
-#ifndef __IMBUF_H__
-#define __IMBUF_H__
+#pragma once
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -61,5 +60,3 @@
 #endif
 
 #define IMB_DPI_DEFAULT 72.0f
-
-#endif /* __IMBUF_H__ */
diff --git a/source/blender/imbuf/intern/oiio/openimageio_api.h b/source/blender/imbuf/intern/oiio/openimageio_api.h
index 3dd089d65cb..3f5f234099c 100644
--- a/source/blender/imbuf/intern/oiio/openimageio_api.h
+++ b/source/blender/imbuf/intern/oiio/openimageio_api.h
@@ -21,8 +21,7 @@
  * \ingroup openimageio
  */
 
-#ifndef __OPENIMAGEIO_API_H__
-#define __OPENIMAGEIO_API_H__
+#pragma once
 
 #include <stdio.h>
 
@@ -44,5 +43,3 @@ int OIIO_getVersionHex(void);
 }
 
 #endif
-
-#endif /* __OPENIMAGEIO_API_H__ */
diff --git a/source/blender/imbuf/intern/openexr/openexr_api.h b/source/blender/imbuf/intern/openexr/openexr_api.h
index b0835e5082e..73db146849b 100644
--- a/source/blender/imbuf/intern/openexr/openexr_api.h
+++ b/source/blender/imbuf/intern/openexr/openexr_api.h
@@ -21,8 +21,7 @@
  * \ingroup openexr
  */
 
-#ifndef __OPENEXR_API_H__
-#define __OPENEXR_API_H__
+#pragma once
 
 #include <stdio.h>
 
@@ -42,5 +41,3 @@ struct ImBuf *imb_load_openexr(const unsigned char *mem, size_t size, int flags,
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __OPENEXR_API_H */
diff --git a/source/blender/imbuf/intern/openexr/openexr_multi.h b/source/blender/imbuf/intern/openexr/openexr_multi.h
index 58f103aeba0..7008447313d 100644
--- a/source/blender/imbuf/intern/openexr/openexr_multi.h
+++ b/source/blender/imbuf/intern/openexr/openexr_multi.h
@@ -21,8 +21,7 @@
  * \ingroup openexr
  */
 
-#ifndef __OPENEXR_MULTI_H__
-#define __OPENEXR_MULTI_H__
+#pragma once
 
 /* experiment with more advanced exr api */
 
@@ -99,5 +98,3 @@ bool IMB_exr_has_multilayer(void *handle);
 #ifdef __cplusplus
 }  // extern "C"
 #endif
-
-#endif /* __OPENEXR_MULTI_H */
-- 
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