diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/compiler.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/compiler.h b/include/compiler.h index b0d595f3..545a72e5 100644 --- a/include/compiler.h +++ b/include/compiler.h @@ -198,5 +198,21 @@ #error shim has no cache_invalidate() implementation for this compiler #endif /* __GNUC__ */ +#define checked_add(addend0, addend1, sum) \ + __builtin_add_overflow(addend0, addend1, sum) +#define checked_sub(minuend, subtrahend, difference) \ + __builtin_sub_overflow(minuend, subtrahend, difference) +#define checked_mul(factor0, factor1, product) \ + __builtin_mul_overflow(factor0, factor1, product) +#define checked_div(dividend, divisor, quotient) \ + ({ \ + bool _ret = True; \ + if ((divisor) != 0) { \ + _ret = False; \ + (quotient) = (dividend) / (divisor); \ + } \ + _ret; \ + }) + #endif /* !COMPILER_H_ */ // vim:fenc=utf-8:tw=75:et |