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gnulib/tests/test-acosl.c
Paul Eggert a3fd683de3 version-etc: new year
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2017-01-01 02:59:23 +00:00

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C

/* Test of acosl() function.
Copyright (C) 2010-2017 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 <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (acosl, long double, (long double));
#include "fpucw.h"
#include "macros.h"
volatile long double x;
long double y;
int
main ()
{
DECL_LONG_DOUBLE_ROUNDING
BEGIN_LONG_DOUBLE_ROUNDING ();
/* A particular value. */
x = 0.6L;
y = acosl (x);
ASSERT (y >= 0.9272952180L && y <= 0.9272952181L);
return 0;
}