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Merge branch 'nirbheek/static-assert-c11' into 'master'

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gmacros: Use _Static_assert when C11 is available

See merge request GNOME/glib!955
This commit is contained in:
Philip Withnall 2019-06-27 10:20:46 +00:00
commit 7b5d1c8b06
1 changed files with 9 additions and 1 deletions
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10
glib/gmacros.h
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@ -734,13 +734,21 @@
#ifndef __GI_SCANNER__ /* The static assert macro really confuses the introspection parser */ #ifndef __GI_SCANNER__ /* The static assert macro really confuses the introspection parser */
#define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2 #define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
#define G_PASTE(identifier1,identifier2) G_PASTE_ARGS (identifier1, identifier2) #define G_PASTE(identifier1,identifier2) G_PASTE_ARGS (identifier1, identifier2)
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
#define G_STATIC_ASSERT(expr) _Static_assert (expr, "Expression evaluates to false")
#define G_STATIC_ASSERT_EXPR(expr) _Static_assert (expr, "Expression evaluates to false")
#elif defined(__cplusplus) && __cplusplus >= 201103L
#define G_STATIC_ASSERT(expr) static_assert (expr, "Expression evaluates to false")
#define G_STATIC_ASSERT_EXPR(expr) static_assert (expr, "Expression evaluates to false")
#else
#ifdef __COUNTER__ #ifdef __COUNTER__
#define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
#else #else
#define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __LINE__)[(expr) ? 1 : -1] G_GNUC_UNUSED #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __LINE__)[(expr) ? 1 : -1] G_GNUC_UNUSED
#endif #endif
#define G_STATIC_ASSERT_EXPR(expr) ((void) sizeof (char[(expr) ? 1 : -1])) #define G_STATIC_ASSERT_EXPR(expr) ((void) sizeof (char[(expr) ? 1 : -1]))
#endif #endif /* __STDC_VERSION__ */
#endif /* !__GI_SCANNER__ */
/* Provide a string identifying the current code position */ /* Provide a string identifying the current code position */
#if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus) #if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus)