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/* Test of POSIX and GNU compatible obstack_[v]zprintf() functions.
Copyright (C) 2007-2025 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>, 2024. */
/* This test exercises only a few POSIX compliance problems that are still
visible on platforms relevant in 2024. */
#include <config.h>
#include <stdio.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "obstack.h"
#include "macros.h"
#define obstack_chunk_alloc malloc
#define obstack_chunk_free free
static void
test_function (ptrdiff_t (*my_obstack_zprintf) (struct obstack *, const char *, ...))
{
struct obstack obs;
obstack_init (&obs);
#define RESULT_EQ(expected) \
(len == strlen (expected) && memcmp (result, expected, len) == 0)
/* Test the support of the 'B' conversion specifier for binary output of
integers. */
{ /* This test would fail on all platforms other than glibc ≥ 2.35. */
ptrdiff_t len =
my_obstack_zprintf (&obs, "%#B %d", 12345, 33, 44, 55);
ASSERT (len >= 0);
char *result = obstack_finish (&obs);
ASSERT (RESULT_EQ ("0B11000000111001 33"));
obstack_free (&obs, result);
}
obstack_free (&obs, NULL);
}
static ptrdiff_t
my_obstack_zprintf (struct obstack *obs, const char *format, ...)
{
va_list args;
ptrdiff_t ret;
va_start (args, format);
ret = obstack_vzprintf (obs, format, args);
va_end (args);
return ret;
}
static void
test_obstack_vzprintf ()
{
test_function (my_obstack_zprintf);
}
static void
test_obstack_zprintf ()
{
test_function (obstack_zprintf);
}
int
main (int argc, char *argv[])
{
test_obstack_vzprintf ();
test_obstack_zprintf ();
return test_exit_status;
}
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