newlib-cygwin/winsup/cygwin/math/roundl.c

27 lines
507 B
C

/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <math.h>
long double
roundl (long double x)
{
long double res = 0.0L;
if (x >= 0.0L)
{
res = ceill (x);
if (res - x > 0.5L)
res -= 1.0L;
}
else
{
res = ceill (-x);
if (res + x > 0.5L)
res -= 1.0L;
res = -res;
}
return res;
}