diff options
Diffstat (limited to 'libcpp/system.h')
| -rw-r--r-- | libcpp/system.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libcpp/system.h b/libcpp/system.h index ee5fbe2..f6fc583 100644 --- a/libcpp/system.h +++ b/libcpp/system.h @@ -422,6 +422,16 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) #endif +#ifdef __has_cpp_attribute +# if __has_cpp_attribute(likely) +# define ATTR_LIKELY [[likely]] +# elif __has_cpp_attribute(__likely__) +# define ATTR_LIKELY [[__likely__]] +# else +# define ATTR_LIKELY +# endif +#endif + /* Poison identifiers we do not want to use. */ #if (GCC_VERSION >= 3000) #undef calloc |