float128: Add strtof128, wcstof128, and related functions.
[glibc.git] / sysdeps / ieee754 / flt-32 / s_totalordermagf.c
blobcac7601e1214ab505d55c3e0d7774329edebf116
1 /* Total order operation on absolute values. flt-32 version.
2 Copyright (C) 2016-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <math.h>
20 #include <math_private.h>
21 #include <nan-high-order-bit.h>
22 #include <stdint.h>
24 int
25 totalordermagf (float x, float y)
27 uint32_t ix, iy;
28 GET_FLOAT_WORD (ix, x);
29 GET_FLOAT_WORD (iy, y);
30 ix &= 0x7fffffff;
31 iy &= 0x7fffffff;
32 #if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
33 /* For the preferred quiet NaN convention, this operation is a
34 comparison of the representations of the absolute values of the
35 arguments. If both arguments are NaNs, invert the
36 quiet/signaling bit so comparing that way works. */
37 if (ix > 0x7f800000 && iy > 0x7f800000)
39 ix ^= 0x00400000;
40 iy ^= 0x00400000;
42 #endif
43 return ix <= iy;