1 | /* Test totalorderl and totalordermagl for ldbl-96. |
2 | Copyright (C) 2016-2022 Free Software Foundation, Inc. |
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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <float.h> |
20 | #include <math.h> |
21 | #include <math_ldbl.h> |
22 | #include <stdbool.h> |
23 | #include <stdint.h> |
24 | #include <stdio.h> |
25 | |
26 | static const uint64_t tests[] = |
27 | { |
28 | 0, 1, 0x4000000000000000ULL, 0x4000000000000001ULL, |
29 | 0x7fffffffffffffffULL |
30 | }; |
31 | |
32 | static int |
33 | do_test (void) |
34 | { |
35 | int result = 0; |
36 | |
37 | if (LDBL_MIN_EXP == -16382) |
38 | for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); i++) |
39 | { |
40 | long double ldx, ldy, ldnx, ldny; |
41 | /* Verify that the high bit of the mantissa is ignored for |
42 | infinities and NaNs for the M68K variant of this |
43 | format. */ |
44 | SET_LDOUBLE_WORDS (ldx, 0x7fff, |
45 | tests[i] >> 32, tests[i] & 0xffffffffULL); |
46 | SET_LDOUBLE_WORDS (ldy, 0x7fff, |
47 | (tests[i] >> 32) | 0x80000000, |
48 | tests[i] & 0xffffffffULL); |
49 | SET_LDOUBLE_WORDS (ldnx, 0xffff, |
50 | tests[i] >> 32, tests[i] & 0xffffffffULL); |
51 | SET_LDOUBLE_WORDS (ldny, 0xffff, |
52 | (tests[i] >> 32) | 0x80000000, |
53 | tests[i] & 0xffffffffULL); |
54 | bool to1 = totalorderl (x: &ldx, y: &ldy); |
55 | bool to2 = totalorderl (x: &ldy, y: &ldx); |
56 | bool to3 = totalorderl (x: &ldnx, y: &ldny); |
57 | bool to4 = totalorderl (x: &ldny, y: &ldnx); |
58 | if (to1 && to2 && to3 && to4) |
59 | printf (format: "PASS: test %zu\n" , i); |
60 | else |
61 | { |
62 | printf (format: "FAIL: test %zu\n" , i); |
63 | result = 1; |
64 | } |
65 | to1 = totalordermagl (x: &ldx, y: &ldy); |
66 | to2 = totalordermagl (x: &ldy, y: &ldx); |
67 | to3 = totalordermagl (x: &ldnx, y: &ldny); |
68 | to4 = totalordermagl (x: &ldny, y: &ldnx); |
69 | if (to1 && to2 && to3 && to4) |
70 | printf (format: "PASS: test %zu (totalordermagl)\n" , i); |
71 | else |
72 | { |
73 | printf (format: "FAIL: test %zu (totalordermagl)\n" , i); |
74 | result = 1; |
75 | } |
76 | } |
77 | |
78 | return result; |
79 | } |
80 | |
81 | #define TEST_FUNCTION do_test () |
82 | #include "../test-skeleton.c" |
83 | |