1 /**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6 #include <math.h>
7
8 double
round(double x)9 round (double x)
10 {
11 double res;
12 if (x >= 0.0)
13 {
14 res = ceil (x);
15 if (res - x > 0.5)
16 res -= 1.0;
17 }
18 else
19 {
20 res = ceil (-x);
21 if (res + x > 0.5)
22 res -= 1.0;
23 res = -res;
24 }
25 return res;
26 }
27