mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 04:01:10 +00:00
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/* Total order operation on absolute values. flt-32 version.
|
|
Copyright (C) 2016-2017 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>
|
|
#include <math_private.h>
|
|
#include <nan-high-order-bit.h>
|
|
#include <stdint.h>
|
|
|
|
int
|
|
totalordermagf (float x, float y)
|
|
{
|
|
uint32_t ix, iy;
|
|
GET_FLOAT_WORD (ix, x);
|
|
GET_FLOAT_WORD (iy, y);
|
|
ix &= 0x7fffffff;
|
|
iy &= 0x7fffffff;
|
|
#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
|
|
/* For the preferred quiet NaN convention, this operation is a
|
|
comparison of the representations of the absolute values of the
|
|
arguments. If both arguments are NaNs, invert the
|
|
quiet/signaling bit so comparing that way works. */
|
|
if (ix > 0x7f800000 && iy > 0x7f800000)
|
|
{
|
|
ix ^= 0x00400000;
|
|
iy ^= 0x00400000;
|
|
}
|
|
#endif
|
|
return ix <= iy;
|
|
}
|