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85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/* Basic tests for __strtod_internal.
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Copyright (C) 1991-2023 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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<https://www.gnu.org/licenses/>. */
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#include <ctype.h>
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#include <locale.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <math.h>
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/* Perform a few tests in a locale with thousands separators. */
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static int
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do_test (void)
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{
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static const struct
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{
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const char *loc;
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const char *str;
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double exp;
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ptrdiff_t nread;
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} tests[] =
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{
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{ "de_DE.UTF-8", "1,5", 1.5, 3 },
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{ "de_DE.UTF-8", "1.5", 1.0, 1 },
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{ "de_DE.UTF-8", "1.500", 1500.0, 5 },
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{ "de_DE.UTF-8", "36.893.488.147.419.103.232", 0x1.0p65, 26 }
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};
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#define ntests (sizeof (tests) / sizeof (tests[0]))
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size_t n;
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int result = 0;
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puts ("\nLocale tests");
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for (n = 0; n < ntests; ++n)
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{
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double d;
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char *endp;
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if (setlocale (LC_ALL, tests[n].loc) == NULL)
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{
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printf ("cannot set locale %s\n", tests[n].loc);
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result = 1;
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continue;
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}
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d = __strtod_internal (tests[n].str, &endp, 1);
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if (d != tests[n].exp)
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{
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printf ("strtod(\"%s\") returns %g and not %g\n",
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tests[n].str, d, tests[n].exp);
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result = 1;
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}
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else if (endp - tests[n].str != tests[n].nread)
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{
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printf ("strtod(\"%s\") read %td bytes and not %td\n",
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tests[n].str, endp - tests[n].str, tests[n].nread);
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result = 1;
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}
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}
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if (result == 0)
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puts ("all OK");
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return result ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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#include <support/test-driver.c>
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