Make non-null return attributes meaningful with gcc 4.9 and up

Mans Rullgard committed 11 years ago

Commit 42d30cf1 parent 61b964b1 file · +13 −0Browse files

Unified · Split

@@ -32,6 +32,19 @@ extern "C" { · 31 unmodified lines
32	32	#pragma GCC system_header
33	33	#endif
34	34
	35	+#if defined __GNUC__
	36	+#define LSX_GCC(maj, min) \
	37	+ ((__GNUC__ > (maj)) \|\| (__GNUC__ == (maj) && __GNUC_MINOR__ >= (min)))
	38	+#else
	39	+#define LSX_GCC(maj, min) 0
	40	+#endif
	41	+
	42	+#if LSX_GCC(4,9)
	43	+#define _Ret_ __attribute__ ((returns_nonnull))
	44	+#define _Ret_valid_ _Ret_
	45	+#define _Ret_z_ _Ret_
	46	+#endif
	47	+
35	48	/*****************************************************************************
36	49	API decoration macros:
37	50	Mostly for documentation purposes. For some compilers, decorations also affect

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