mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-05 00:46:16 +01:00
6b69bf8866
2004-11-25 Matthias Clasen <mclasen@redhat.com> * tests/strtod-test.c (main): Add a testcase for the previous fix. * glib/gstrfuncs.c (g_ascii_strtod): Make it work again for floats starting with a decimal point, like .75 (#156421, Hans Breuer)
115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
#undef G_DISABLE_ASSERT
|
|
#undef G_LOG_DOMAIN
|
|
|
|
/* for NAN and INFINITY */
|
|
#define _ISOC99_SOURCE
|
|
|
|
#include <glib.h>
|
|
#include <locale.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
void
|
|
test_string (char *number, double res, gboolean check_end, int correct_len)
|
|
{
|
|
double d;
|
|
char *locales[] = {"sv_SE", "en_US", "fa_IR", "C", "ru_RU"};
|
|
int l;
|
|
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++)
|
|
{
|
|
gboolean ok;
|
|
char *end = "(unset)";
|
|
|
|
setlocale (LC_NUMERIC, locales[l]);
|
|
d = g_ascii_strtod (number, &end);
|
|
ok = isnan (res) ? isnan (d) : (d == res);
|
|
if (!ok)
|
|
{
|
|
g_print ("g_ascii_strtod on \"%s\" for locale %s failed\n", number, locales[l]);
|
|
g_print ("expected %f (nan %d) actual %f (nan %d)\n",
|
|
res, isnan (res),
|
|
d, isnan (d));
|
|
}
|
|
|
|
ok = (end - number) == (check_end ? correct_len : strlen (number));
|
|
if (!ok) {
|
|
if (end == NULL)
|
|
g_print ("g_ascii_strtod on \"%s\" for locale %s endptr was NULL\n",
|
|
number, locales[l]);
|
|
else if (end >= number && end <= number + strlen (number))
|
|
g_print ("g_ascii_strtod on \"%s\" for locale %s endptr was wrong, leftover: \"%s\"\n",
|
|
number, locales[l], end);
|
|
else
|
|
g_print ("g_ascii_strtod on \"%s\" for locale %s endptr was REALLY wrong (number=%p, end=%p)\n",
|
|
number, locales[l], number, end);
|
|
}
|
|
}
|
|
|
|
g_free (number);
|
|
}
|
|
|
|
|
|
int
|
|
main ()
|
|
{
|
|
gdouble d, our_nan, our_inf;
|
|
char buffer[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
#ifdef NAN
|
|
our_nan = NAN;
|
|
#else
|
|
/* Do this before any call to setlocale. */
|
|
our_nan = atof ("NaN");
|
|
#endif
|
|
g_assert (isnan (our_nan));
|
|
|
|
#ifdef INFINITY
|
|
our_inf = INFINITY;
|
|
#else
|
|
our_inf = atof ("Infinity");
|
|
#endif
|
|
g_assert (our_inf > 1 && our_inf == our_inf / 2);
|
|
|
|
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);
|
|
/* the following are for #156421 */
|
|
test_string ("1e1", 1e1, FALSE, 0);
|
|
test_string ("NAN", our_nan, FALSE, 0);
|
|
test_string ("-nan", -our_nan, FALSE, 0);
|
|
test_string ("INF", our_inf, FALSE, 0);
|
|
test_string ("-infinity", -our_inf, FALSE, 0);
|
|
test_string ("-.75,0", -0.75, TRUE, 4);
|
|
|
|
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;
|
|
}
|