diff options
Diffstat (limited to 'internal.h')
| -rw-r--r-- | internal.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/internal.h b/internal.h index ca3649d0f6..5f38b4e146 100644 --- a/internal.h +++ b/internal.h @@ -63,15 +63,18 @@ extern "C" { #define numberof(array) ((int)(sizeof(array) / sizeof((array)[0]))) -#define STATIC_ASSERT_TYPE(name) static_assert_##name##_check -#define STATIC_ASSERT(name, expr) typedef int STATIC_ASSERT_TYPE(name)[1 - 2*!(expr)] - #define GCC_VERSION_SINCE(major, minor, patchlevel) \ (defined(__GNUC__) && !defined(__INTEL_COMPILER) && \ ((__GNUC__ > (major)) || \ (__GNUC__ == (major) && __GNUC_MINOR__ > (minor)) || \ (__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ >= (patchlevel)))) +#if GCC_VERSION_SINCE(4, 6, 0) +# STATIC_ASSERT(name, expr) _Static_assert(expr, #name ": " #expr) +#else +# define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[1 - 2*!(expr)] +#endif + #define SIGNED_INTEGER_TYPE_P(int_type) (0 > ((int_type)0)-1) #define SIGNED_INTEGER_MAX(sint_type) \ (sint_type) \ @@ -516,7 +519,6 @@ VALUE rb_ary_tmp_new_fill(long capa); const VALUE args_to_new_ary[] = {__VA_ARGS__}; \ if (__builtin_constant_p(n)) { \ STATIC_ASSERT(rb_ary_new_from_args, numberof(args_to_new_ary) == (n)); \ - (void)sizeof(STATIC_ASSERT_TYPE(rb_ary_new_from_args)); /* suppress warnings by gcc 4.8 or later */ \ } \ rb_ary_new_from_values(numberof(args_to_new_ary), args_to_new_ary); \ }) |