| 1 | /* Test strtod functions handle signs of NaNs (bug 23007). |
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| 2 | Copyright (C) 2018-2022 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 | #include <math.h> |
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| 20 | #include <stdlib.h> |
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| 21 | #include <wchar.h> |
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| 22 | |
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| 23 | #include <stdlib/tst-strtod.h> |
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| 24 | #include <support/check.h> |
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| 25 | |
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| 26 | #define CONCAT_(X, Y) X ## Y |
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| 27 | #define CONCAT(X, Y) CONCAT_ (X, Y) |
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| 28 | #define FNX(FN) CONCAT (FNPFX, FN) |
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| 29 | |
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| 30 | #define TEST_STRTOD(FSUF, FTYPE, FTOSTR, LSUF, CSUF) \ |
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| 31 | static int \ |
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| 32 | test_strto ## FSUF (void) \ |
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| 33 | { \ |
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| 34 | FTYPE val_pos = FNX (FSUF) (L_("nan"), NULL); \ |
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| 35 | FTYPE copy_pos = copysign ## CSUF (1, val_pos); \ |
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| 36 | TEST_VERIFY (isnan (val_pos) && copy_pos == 1); \ |
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| 37 | FTYPE val_neg = FNX (FSUF) (L_("-nan"), NULL); \ |
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| 38 | FTYPE copy_neg = copysign ## CSUF (1, val_neg); \ |
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| 39 | TEST_VERIFY (isnan (val_neg) && copy_neg == -1); \ |
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| 40 | return 0; \ |
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| 41 | } |
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| 42 | GEN_TEST_STRTOD_FOREACH (TEST_STRTOD) |
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| 43 | |
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| 44 | static int |
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| 45 | do_test (void) |
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| 46 | { |
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| 47 | return STRTOD_TEST_FOREACH (test_strto); |
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| 48 | } |
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| 49 | |
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| 50 | #include <support/test-driver.c> |
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| 51 | |
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