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/* Test of atan2f() function.
Copyright (C) 2010-2018 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>, 2010-2011. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (atan2f, float, (float, float));
#include "macros.h"
volatile float x;
volatile float y;
float z;
int
main ()
{
/* A particular value in the first quadrant. */
x = 0.6f;
y = 0.8f;
z = atan2f (y, x);
ASSERT (z >= 0.92729515f && z <= 0.9272953f);
/* A particular value in the second quadrant. */
x = -0.6f;
y = 0.8f;
z = atan2f (y, x);
ASSERT (z >= 2.2142974f && z <= 2.2142975f);
/* A particular value in the third quadrant. */
x = -0.6f;
y = -0.8f;
z = atan2f (y, x);
ASSERT (z >= -2.2142975f && z <= -2.2142974f);
/* A particular value in the fourth quadrant. */
x = 0.6f;
y = -0.8f;
z = atan2f (y, x);
ASSERT (z >= -0.9272953f && z <= -0.92729515f);
return 0;
}
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