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/* Test of nstrftime in Thailand.
Copyright (C) 2025-2026 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2025. */
#include <config.h>
/* Specification. */
#include "strftime.h"
#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "localcharset.h"
#include "macros.h"
#if defined _WIN32 && !defined __CYGWIN__
# define LOCALE "Thai_Thailand.65001"
#else
# define LOCALE "th_TH.UTF-8"
#endif
#define DECLARE_TM(variable, greg_year, greg_month, greg_day) \
struct tm variable = \
{ \
.tm_year = (greg_year) - 1900, \
.tm_mon = (greg_month) - 1, \
.tm_mday = (greg_day), \
.tm_hour = 12, .tm_min = 34, .tm_sec = 56 \
}; \
/* Fill the other fields. */ \
time_t tt = timegm (&variable); \
gmtime_r (&tt, &variable)/*;*/
int
main ()
{
setenv ("LC_ALL", LOCALE, 1);
if (setlocale (LC_ALL, "") == NULL
|| strcmp (setlocale (LC_ALL, NULL), "C") == 0
|| strcmp (locale_charset (), "UTF-8") != 0)
{
fprintf (stderr, "Skipping test: Unicode locale for Thailand is not installed\n");
return 77;
}
#if defined __OpenBSD__ || defined _AIX || defined __ANDROID__
fprintf (stderr, "Skipping test: determining the locale name is not worth it on this platform\n");
return 77;
#else
char buf[100];
ptrdiff_t ret;
/* Native Windows does not support dates before 1970-01-01. */
# if !(defined _WIN32 && !defined __CYGWIN__)
{
DECLARE_TM (tm, 1939, 6, 23);
ret = nstrftime (buf, sizeof (buf), "%Y-%m-%d",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "2482-03-23") == 0);
ret = nstrftime (buf, sizeof (buf), "%-d. %B %Y",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "23. มิถุนายน 2482") == 0);
ret = nstrftime (buf, sizeof (buf), "%x",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "23/03/2482") == 0);
}
{
DECLARE_TM (tm, 1969, 12, 28);
ret = nstrftime (buf, sizeof (buf), "%Y-%m-%d",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "2512-12-28") == 0);
ret = nstrftime (buf, sizeof (buf), "%-d. %B %Y",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "28. ธันวาคม 2512") == 0);
ret = nstrftime (buf, sizeof (buf), "%x",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "28/12/2512") == 0);
}
# endif
{
DECLARE_TM (tm, 2025, 3, 1);
ret = nstrftime (buf, sizeof (buf), "%Y-%m-%d",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "2568-03-01") == 0);
ret = nstrftime (buf, sizeof (buf), "%-d. %B %Y",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "1. มีนาคม 2568") == 0);
ret = nstrftime (buf, sizeof (buf), "%x",
&tm, (timezone_t) 0, 0);
ASSERT (ret > 0);
ASSERT (strcmp (buf, "01/03/2568") == 0);
}
return test_exit_status;
#endif
}
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