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

9 lines
161 B
C

#include <math.h>
long double
roundl (long double x)
{
/* Add +/- 0.5 then then round towards zero. */
return truncl ( x + (x >= 0.0L ? 0.5L : -0.5L));
}