zig/lib/libc/mingw/math/roundf.c

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/**
* 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>
float
roundf (float x)
{
float res;
if (x >= 0.0F)
{
res = ceilf (x);
if (res - x > 0.5F)
res -= 1.0F;
}
else
{
res = ceilf (-x);
if (res + x > 0.5F)
res -= 1.0F;
res = -res;
}
return res;
}