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/* Test file for multiple mpfr.h inclusion and va_list related functions
Copyright 2011-2021 Free Software Foundation, Inc.
Contributed by the AriC and Caramba projects, INRIA.
This file is part of the GNU MPFR Library.
The GNU MPFR 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 3 of the License, or (at your
option) any later version.
The GNU MPFR 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 MPFR Library; see the file COPYING.LESSER. If not, see
https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if defined(HAVE_STDARG) && !defined(MPFR_USE_MINI_GMP)
#if _MPFR_EXP_FORMAT == 4
/* If mpfr_exp_t is defined as intmax_t, intmax_t must be defined before
the inclusion of mpfr.h (this test doesn't use mpfr-impl.h). */
# include <stdint.h>
#endif
/* One of the goals of this test is to detect potential issues with the
* following case in user code:
*
* #include <some_lib.h>
* #include <stdarg.h>
* #define MPFR_USE_VA_LIST
* #include <mpfr.h>
*
* where some_lib.h has "#include <mpfr.h>". So, the mpfr.h header file
* is included multiple times, a first time without <stdarg.h> before,
* and a second time with <stdarg.h> support. We need to make sure that
* the second inclusion is not a no-op due to some #include guard. This
* was fixed in r7320.
*
* Note: one needs to make sure that optimizations do not drop the call
* to mpfr_vfprintf.
*/
#include <mpfr.h>
#include <stdarg.h>
#define MPFR_USE_VA_LIST /* necessary due to GMP bug concerning inclusions */
#include <mpfr.h>
#include <stdio.h>
#define MPFR_USE_FILE /* necessary due to GMP bug concerning inclusions */
#include <mpfr.h>
#include "mpfr-test.h"
static void
test (FILE *fout, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
mpfr_vfprintf (fout, fmt, ap);
va_end (ap);
}
int
main (void)
{
tests_start_mpfr ();
test (stdout, "");
tests_end_mpfr ();
return 0;
}
#else /* HAVE_STDARG */
/* The test is disabled. */
int
main (void)
{
return 77;
}
#endif /* HAVE_STDARG */
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