| 1 | /* Test lgamma functions do not set signgam for ISO C. |
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| 2 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #undef _LIBC |
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| 20 | #undef _GNU_SOURCE |
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| 21 | |
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| 22 | #include <math.h> |
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| 23 | #include <stdio.h> |
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| 24 | |
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| 25 | #define INITVAL ((TYPE) -1 / 3) |
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| 26 | |
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| 27 | #if DO_INIT |
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| 28 | TYPE signgam = INITVAL; |
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| 29 | #else |
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| 30 | TYPE signgam; |
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| 31 | #endif |
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| 32 | |
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| 33 | #define RUN_TESTS(FUNC, TYPE) \ |
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| 34 | do \ |
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| 35 | { \ |
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| 36 | volatile TYPE a, b, c __attribute__ ((unused)); \ |
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| 37 | a = 0.5; \ |
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| 38 | b = -0.5; \ |
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| 39 | signgam = INITVAL; \ |
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| 40 | c = FUNC (a); \ |
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| 41 | if (signgam == INITVAL) \ |
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| 42 | puts ("PASS: " #FUNC " (0.5) setting signgam"); \ |
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| 43 | else \ |
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| 44 | { \ |
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| 45 | puts ("FAIL: " #FUNC " (0.5) setting signgam"); \ |
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| 46 | result = 1; \ |
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| 47 | } \ |
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| 48 | signgam = INITVAL; \ |
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| 49 | c = FUNC (b); \ |
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| 50 | if (signgam == INITVAL) \ |
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| 51 | puts ("PASS: " #FUNC " (-0.5) setting signgam"); \ |
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| 52 | else \ |
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| 53 | { \ |
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| 54 | puts ("FAIL: " #FUNC " (-0.5) setting signgam"); \ |
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| 55 | result = 1; \ |
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| 56 | } \ |
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| 57 | } \ |
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| 58 | while (0) |
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| 59 | |
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| 60 | int |
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| 61 | main (void) |
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| 62 | { |
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| 63 | int result = 0; |
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| 64 | RUN_TESTS (lgammaf, float); |
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| 65 | RUN_TESTS (lgamma, double); |
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| 66 | RUN_TESTS (lgammal, long double); |
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| 67 | return result; |
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| 68 | } |
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| 69 | |
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