diff options
Diffstat (limited to 'common/math_util.c')
| -rw-r--r-- | common/math_util.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/common/math_util.c b/common/math_util.c index 22f5872267..e80d6a9888 100644 --- a/common/math_util.c +++ b/common/math_util.c @@ -272,3 +272,11 @@ void rotate_inv(const intv3_t v, const mat33_fp_t R, intv3_t res) res[1] = FP_TO_INT(fp_div(t[1], deter)); res[2] = FP_TO_INT(fp_div(t[2], deter)); } + +/* division that round to the nearest integer */ +int round_divide(int64_t dividend, int divisor) +{ + return (dividend > 0) ^ (divisor > 0) ? + (dividend - divisor / 2) / divisor : + (dividend + divisor / 2) / divisor; +} |