diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/math_func.hpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/core/math_func.hpp b/src/core/math_func.hpp index df9142462..4a19033f4 100644 --- a/src/core/math_func.hpp +++ b/src/core/math_func.hpp @@ -346,6 +346,23 @@ static inline int RoundDivSU(int a, uint b) } } +/** + * Computes (a / b) rounded away from zero. + * @param a Numerator + * @param b Denominator + * @return Quotient, rounded away from zero + */ +static inline int DivAwayFromZero(int a, uint b) +{ + const int _b = static_cast<int>(b); + if (a > 0) { + return (a + _b - 1) / _b; + } else { + /* Note: Behaviour of negative numerator division is truncation toward zero. */ + return (a - _b + 1) / _b; + } +} + uint32 IntSqrt(uint32 num); #endif /* MATH_FUNC_HPP */ |