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/* Basic tests for __strtod_internal.
Copyright (C) 1991-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <ctype.h>
#include <locale.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <math.h>
/* Perform a few tests in a locale with thousands separators. */
static int
do_test (void)
{
static const struct
{
const char *loc;
const char *str;
double exp;
ptrdiff_t nread;
} tests[] =
{
{ "de_DE.UTF-8", "1,5", 1.5, 3 },
{ "de_DE.UTF-8", "1.5", 1.0, 1 },
{ "de_DE.UTF-8", "1.500", 1500.0, 5 },
{ "de_DE.UTF-8", "36.893.488.147.419.103.232", 0x1.0p65, 26 }
};
#define ntests (sizeof (tests) / sizeof (tests[0]))
size_t n;
int result = 0;
puts ("\nLocale tests");
for (n = 0; n < ntests; ++n)
{
double d;
char *endp;
if (setlocale (LC_ALL, tests[n].loc) == NULL)
{
printf ("cannot set locale %s\n", tests[n].loc);
result = 1;
continue;
}
d = __strtod_internal (tests[n].str, &endp, 1);
if (d != tests[n].exp)
{
printf ("strtod(\"%s\") returns %g and not %g\n",
tests[n].str, d, tests[n].exp);
result = 1;
}
else if (endp - tests[n].str != tests[n].nread)
{
printf ("strtod(\"%s\") read %td bytes and not %td\n",
tests[n].str, endp - tests[n].str, tests[n].nread);
result = 1;
}
}
if (result == 0)
puts ("all OK");
return result ? EXIT_FAILURE : EXIT_SUCCESS;
}
#include <support/test-driver.c>
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