glib/tests/strtod-test.c
Matthias Clasen d7af9f1a48 Fix problems when a locale-specific decimal separator directly follows a
2004-04-22  Matthias Clasen  <mclasen@redhat.com>

	* glib/gstrfuncs.c (g_ascii_strtod): Fix problems when a
	locale-specific decimal separator directly follows a
	number.  (#138424, Nickolay V. Shmyrev)

	* tests/strtod-test.c (main): Add some more testcases.
2004-04-22 15:51:16 +00:00

72 lines
2.5 KiB
C

#undef G_DISABLE_ASSERT
#undef G_LOG_DOMAIN
#include <glib.h>
#include <locale.h>
#include <string.h>
#include <math.h>
void
test_string (char *number, double res, gboolean check_end, int correct_len)
{
gdouble d;
char *locales[] = {"sv_SE", "en_US", "fa_IR", "C", "ru_RU"};
int l;
char *end;
char *dummy;
/* we try a copy of number, with some free space for malloc before that.
* This is supposed to smash the some wrong pointer calculations. */
dummy = g_malloc (100000);
number = g_strdup (number);
g_free (dummy);
for (l = 0; l < G_N_ELEMENTS (locales); l++)
{
setlocale (LC_NUMERIC, locales[l]);
d = g_ascii_strtod (number, &end);
if (d != res)
g_print ("g_ascii_strtod for locale %s failed\n", locales[l]);
if (check_end && end - number != correct_len)
g_print ("g_ascii_strtod for locale %s endptr was wrong\n", locales[l]);
if (!check_end && end - number != strlen (number))
g_print ("g_ascii_strtod for locale %s endptr was wrong\n", locales[l]);
}
g_free (number);
}
int
main ()
{
gdouble d;
char buffer[G_ASCII_DTOSTR_BUF_SIZE];
test_string ("123.123", 123.123, FALSE, 0);
test_string ("123.123e2", 123.123e2, FALSE, 0);
test_string ("123.123e-2", 123.123e-2, FALSE, 0);
test_string ("-123.123", -123.123, FALSE, 0);
test_string ("-123.123e2", -123.123e2, FALSE, 0);
test_string ("-123.123e-2", -123.123e-2, FALSE, 0);
test_string ("5.4", 5.4, TRUE, 3);
test_string ("5.4,5.5", 5.4, TRUE, 3);
test_string ("5,4", 5.0, TRUE, 1);
d = 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0;
g_assert (d == g_ascii_strtod (g_ascii_dtostr (buffer, sizeof (buffer), d), NULL));
d = -179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0;
g_assert (d == g_ascii_strtod (g_ascii_dtostr (buffer, sizeof (buffer), d), NULL));
d = pow (2.0, -1024.1);
g_assert (d == g_ascii_strtod (g_ascii_dtostr (buffer, sizeof (buffer), d), NULL));
d = -pow (2.0, -1024.1);
g_assert (d == g_ascii_strtod (g_ascii_dtostr (buffer, sizeof (buffer), d), NULL));
return 0;
}