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Diffstat (limited to 'src/shared/macro.h')
| -rw-r--r-- | src/shared/macro.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/shared/macro.h b/src/shared/macro.h index 79bee0396c..dfbc20142f 100644 --- a/src/shared/macro.h +++ b/src/shared/macro.h @@ -117,6 +117,13 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) { _a < _b ? _a : _b; \ }) +#define LESS_BY(A,B) \ + __extension__ ({ \ + typeof(A) _A = (A); \ + typeof(B) _B = (B); \ + _A > _B ? _A - _B : 0; \ + }) + #ifndef CLAMP #define CLAMP(x, low, high) \ __extension__ ({ \ |