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/* Test of modfl() function.
Copyright (C) 2010-2023 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>, 2010. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (modfl, long double, (long double, long double *));
#include <float.h>
#include "fpucw.h"
#include "macros.h"
#define DOUBLE long double
#define L_(literal) literal##L
#define MANT_DIG LDBL_MANT_DIG
#define MODF modfl
#define RANDOM randoml
#include "test-modf.h"
int
main ()
{
DECL_LONG_DOUBLE_ROUNDING
BEGIN_LONG_DOUBLE_ROUNDING ();
/* A particular positive value. */
x = 5.972406760L;
y = modfl (x, &z);
ASSERT (y >= 0.972406759L && y <= 0.972406761L);
ASSERT (z == 5.0);
/* A particular negative value. */
x = -5.972406760L;
y = modfl (x, &z);
ASSERT (y >= -0.972406761L && y <= -0.972406759L);
ASSERT (z == -5.0L);
test_function ();
return 0;
}
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