mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* Round a 32-bit floating point value to the nearest integer.
|
|
Copyright (C) 1997, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <math.h>
|
|
|
|
float
|
|
__rintf (float x)
|
|
{
|
|
static const float TWO23 = 8388608.0;
|
|
|
|
if (fabsf (x) < TWO23)
|
|
{
|
|
if (x > 0.0)
|
|
{
|
|
x += TWO23;
|
|
x -= TWO23;
|
|
}
|
|
else if (x < 0.0)
|
|
{
|
|
x = TWO23 - x;
|
|
x = -(x - TWO23);
|
|
}
|
|
}
|
|
|
|
return x;
|
|
}
|
|
weak_alias (__rintf, rintf)
|