Compile Attrs: add ATTR_RETURNS_NONNULL

2014-02-17 23:29:57 +11:00 · 2014-02-17 23:29:57 +11:00 · 4c512fb642
parent 50b2c78ad8
commit 4c512fb642
1 changed files with 7 additions and 0 deletions
--- a/source/blender/blenlib/BLI_compiler_attrs.h
+++ b/source/blender/blenlib/BLI_compiler_attrs.h
@ -50,6 +50,13 @@
 #  define ATTR_NONNULL(...)
 #endif

+/* never returns NULL */
+#  if (__GNUC__ * 100 + __GNUC_MINOR__) >= 409  /* gcc4.9+ only */
+#  define ATTR_RETURNS_NONNULL __attribute__((returns_nonnull))
+#else
+#  define ATTR_RETURNS_NONNULL
+#endif
+
 /* hint to mark function as it wouldn't return */
 #if defined(__GNUC__) || defined(__clang__)
 #  define ATTR_NORETURN __attribute__((noreturn))