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1 | /* Test lgamma functions do not set signgam for ISO C. | |
2 | Copyright (C) 2015-2023 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 | #undef _LIBC | |
20 | #undef _GNU_SOURCE | |
21 | ||
22 | #include <math.h> | |
23 | #include <stdio.h> | |
24 | ||
25 | #define INITVAL ((TYPE) -1 / 3) | |
26 | ||
27 | #if DO_INIT | |
28 | TYPE signgam = INITVAL; | |
29 | #else | |
30 | TYPE signgam; | |
31 | #endif | |
32 | ||
33 | #define RUN_TESTS(FUNC, TYPE) \ | |
34 | do \ | |
35 | { \ | |
36 | volatile TYPE a, b, c __attribute__ ((unused)); \ | |
37 | a = 0.5; \ | |
38 | b = -0.5; \ | |
39 | signgam = INITVAL; \ | |
40 | c = FUNC (a); \ | |
41 | if (signgam == INITVAL) \ | |
42 | puts ("PASS: " #FUNC " (0.5) setting signgam"); \ | |
43 | else \ | |
44 | { \ | |
45 | puts ("FAIL: " #FUNC " (0.5) setting signgam"); \ | |
46 | result = 1; \ | |
47 | } \ | |
48 | signgam = INITVAL; \ | |
49 | c = FUNC (b); \ | |
50 | if (signgam == INITVAL) \ | |
51 | puts ("PASS: " #FUNC " (-0.5) setting signgam"); \ | |
52 | else \ | |
53 | { \ | |
54 | puts ("FAIL: " #FUNC " (-0.5) setting signgam"); \ | |
55 | result = 1; \ | |
56 | } \ | |
57 | } \ | |
58 | while (0) | |
59 | ||
60 | int | |
61 | main (void) | |
62 | { | |
63 | int result = 0; | |
64 | RUN_TESTS (lgammaf, float); | |
65 | RUN_TESTS (lgamma, double); | |
66 | RUN_TESTS (lgammal, long double); | |
67 | return result; | |
68 | } |