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| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-21 20:59:39 +0000 |
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| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-21 20:59:39 +0000 |
| commit | 7b51049f159b77b22bf1ac0f562e1a68598424e2 (patch) | |
| tree | 3b78b9e51f291cf868889bd79676d1a60e028eac /include | |
| parent | 2d70240a35fcd425dd2fe812f5ea402079f2374e (diff) | |
| download | ruby-7b51049f159b77b22bf1ac0f562e1a68598424e2.tar.gz | |
* include/ruby/ruby.h (LIKELY): moved from internal.h.
* include/ruby/ruby.h (UNLIKELY): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54662 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'include')
| -rw-r--r-- | include/ruby/ruby.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h index 5c942c95ce..71a91b558f 100644 --- a/include/ruby/ruby.h +++ b/include/ruby/ruby.h @@ -62,6 +62,15 @@ extern "C" { # define UNREACHABLE ((void)0) /* unreachable */ #endif +/* likely */ +#if __GNUC__ >= 3 +#define LIKELY(x) (__builtin_expect(!!(x), 1)) +#define UNLIKELY(x) (__builtin_expect(!!(x), 0)) +#else /* __GNUC__ >= 3 */ +#define LIKELY(x) (x) +#define UNLIKELY(x) (x) +#endif /* __GNUC__ >= 3 */ + #ifdef __GNUC__ #define PRINTF_ARGS(decl, string_index, first_to_check) \ decl __attribute__((format(printf, string_index, first_to_check))) |