1 | #if defined(_MSC_VER) |
---|---|
2 | # if !defined(likely) |
3 | # define likely(x) (x) |
4 | # endif |
5 | # if !defined(unlikely) |
6 | # define unlikely(x) (x) |
7 | # endif |
8 | #else |
9 | # if !defined(likely) |
10 | # define likely(x) (__builtin_expect(!!(x), 1)) |
11 | # endif |
12 | # if !defined(unlikely) |
13 | # define unlikely(x) (__builtin_expect(!!(x), 0)) |
14 | # endif |
15 | #endif |
16 |