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61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* Test of atan2f() function.
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Copyright (C) 2010-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2010-2011. */
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#include <config.h>
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#include <math.h>
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#include "signature.h"
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SIGNATURE_CHECK (atan2f, float, (float, float));
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#include "macros.h"
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volatile float x;
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volatile float y;
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float z;
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int
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main ()
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{
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/* A particular value in the first quadrant. */
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x = 0.6f;
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y = 0.8f;
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z = atan2f (y, x);
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ASSERT (z >= 0.92729515f && z <= 0.9272953f);
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/* A particular value in the second quadrant. */
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x = -0.6f;
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y = 0.8f;
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z = atan2f (y, x);
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ASSERT (z >= 2.2142974f && z <= 2.2142975f);
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/* A particular value in the third quadrant. */
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x = -0.6f;
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y = -0.8f;
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z = atan2f (y, x);
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ASSERT (z >= -2.2142975f && z <= -2.2142974f);
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/* A particular value in the fourth quadrant. */
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x = 0.6f;
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y = -0.8f;
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z = atan2f (y, x);
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ASSERT (z >= -0.9272953f && z <= -0.92729515f);
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return 0;
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}
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