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cc6a8d74 | 1 | /* Total order operation on absolute values. ldbl-96 version. |
04277e02 | 2 | Copyright (C) 2016-2019 Free Software Foundation, Inc. |
cc6a8d74 JM |
3 | This file is part of the GNU C Library. |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
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/>. */ | |
18 | ||
19 | #include <float.h> | |
20 | #include <math.h> | |
21 | #include <math_private.h> | |
86f9568a | 22 | #include <libm-alias-ldouble.h> |
6f322a89 | 23 | #include <nan-high-order-bit.h> |
cc6a8d74 JM |
24 | #include <stdint.h> |
25 | ||
26 | int | |
01f28812 | 27 | __totalordermagl (long double x, long double y) |
cc6a8d74 JM |
28 | { |
29 | uint16_t expx, expy; | |
30 | uint32_t hx, hy; | |
31 | uint32_t lx, ly; | |
32 | GET_LDOUBLE_WORDS (expx, hx, lx, x); | |
33 | GET_LDOUBLE_WORDS (expy, hy, ly, y); | |
34 | expx &= 0x7fff; | |
35 | expy &= 0x7fff; | |
36 | if (LDBL_MIN_EXP == -16382) | |
37 | { | |
38 | /* M68K variant: for the greatest exponent, the high mantissa | |
39 | bit is not significant and both values of it are valid, so | |
40 | set it before comparing. For the Intel variant, only one | |
41 | value of the high mantissa bit is valid for each exponent, so | |
42 | this is not necessary. */ | |
43 | if (expx == 0x7fff) | |
44 | hx |= 0x80000000; | |
45 | if (expy == 0x7fff) | |
46 | hy |= 0x80000000; | |
47 | } | |
6f322a89 | 48 | #if HIGH_ORDER_BIT_IS_SET_FOR_SNAN |
cc6a8d74 JM |
49 | # error not implemented |
50 | #endif | |
51 | return expx < expy || (expx == expy && (hx < hy || (hx == hy && lx <= ly))); | |
52 | } | |
86f9568a | 53 | libm_alias_ldouble (__totalordermag, totalordermag) |