Commit: c26fa67bcd051e55960dadbcd5a6ee4fd1d0fb4a
Author: Campbell Barton
Date: Mon Feb 23 13:50:12 2015 +1100
Branches: master
https://developer.blender.org/rBc26fa67bcd051e55960dadbcd5a6ee4fd1d0fb4a
BLI_utildefines: add pointer offset macro
Handy since it keeps the type of the original.
===================================================================
M source/blender/blenlib/BLI_utildefines.h
===================================================================
diff --git a/source/blender/blenlib/BLI_utildefines.h
b/source/blender/blenlib/BLI_utildefines.h
index de91332..c7e26ce 100644
--- a/source/blender/blenlib/BLI_utildefines.h
+++ b/source/blender/blenlib/BLI_utildefines.h
@@ -481,6 +481,14 @@ extern "C" {
/* reusable ELEM macro */
#define ARRAY_SET_ITEMS(...) { VA_NARGS_CALL_OVERLOAD(_VA_ARRAY_SET_ITEMS,
__VA_ARGS__); } (void)0
+#if defined(__GNUC__) || defined(__clang__)
+#define POINTER_OFFSET(v, ofs) \
+ ((typeof(v))((char *)(v) + ofs))
+#else
+#define POINTER_OFFSET(v, ofs) \
+ ((void *)((char *)(v) + ofs))
+#endif
+
/* Like offsetof(typeof(), member), for non-gcc compilers */
#define OFFSETOF_STRUCT(_struct, _member) \
((((char *)&((_struct)->_member)) - ((char *)(_struct))) +
sizeof((_struct)->_member))
_______________________________________________
Bf-blender-cvs mailing list
[email protected]
http://lists.blender.org/mailman/listinfo/bf-blender-cvs
