]>
git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/ieee754/ldbl-128/s_totalordermagl.c
1 /* Total order operation on absolute values. ldbl-128 version.
2 Copyright (C) 2016-2019 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/>. */
20 #include <math_private.h>
21 #include <libm-alias-ldouble.h>
22 #include <nan-high-order-bit.h>
26 __totalordermagl (_Float128 x
, _Float128 y
)
30 GET_LDOUBLE_WORDS64 (hx
, lx
, x
);
31 GET_LDOUBLE_WORDS64 (hy
, ly
, y
);
32 hx
&= 0x7fffffffffffffffULL
;
33 hy
&= 0x7fffffffffffffffULL
;
34 #if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
35 /* For the preferred quiet NaN convention, this operation is a
36 comparison of the representations of the absolute values of the
37 arguments. If both arguments are NaNs, invert the
38 quiet/signaling bit so comparing that way works. */
39 if ((hx
> 0x7fff000000000000ULL
|| (hx
== 0x7fff000000000000ULL
41 && (hy
> 0x7fff000000000000ULL
|| (hy
== 0x7fff000000000000ULL
44 hx
^= 0x0000800000000000ULL
;
45 hy
^= 0x0000800000000000ULL
;
48 return hx
< hy
|| (hx
== hy
&& lx
<= ly
);
50 libm_alias_ldouble (__totalordermag
, totalordermag
)