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b12c1e7991
This patch adds tests for bug 23007, strtod ignoring any sign in the input string in the case of a NaN result. Tested for x86_64. [BZ #23007] * stdlib/tst-strtod-nan-sign-main.c: New file. * stdlib/tst-strtod-nan-sign.c: Likewise. * wcsmbs/tst-wcstod-nan-sign.c: Likewise. * stdlib/Makefile (tests): Add tst-strtod-nan-sign. ($(objpfx)tst-strtod-nan-sign): Depend on $(libm). * wcsmbs/Makefile (tests) Add tst-wcstod-nan-sign. ($(objpfx)tst-wcstod-nan-sign): Depend on $(libm).
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* Test strtod functions handle signs of NaNs (bug 23007).
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <math.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include <stdlib/tst-strtod.h>
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#include <support/check.h>
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#define CONCAT_(X, Y) X ## Y
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#define CONCAT(X, Y) CONCAT_ (X, Y)
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#define FNX(FN) CONCAT (FNPFX, FN)
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#define TEST_STRTOD(FSUF, FTYPE, FTOSTR, LSUF, CSUF) \
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static int \
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test_strto ## FSUF (void) \
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{ \
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FTYPE val_pos = FNX (FSUF) (L_("nan"), NULL); \
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FTYPE copy_pos = copysign ## CSUF (1, val_pos); \
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TEST_VERIFY (isnan (val_pos) && copy_pos == 1); \
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FTYPE val_neg = FNX (FSUF) (L_("-nan"), NULL); \
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FTYPE copy_neg = copysign ## CSUF (1, val_neg); \
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TEST_VERIFY (isnan (val_neg) && copy_neg == -1); \
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return 0; \
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}
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GEN_TEST_STRTOD_FOREACH (TEST_STRTOD)
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static int
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do_test (void)
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{
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return STRTOD_TEST_FOREACH (test_strto);
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}
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#include <support/test-driver.c>
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