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Diffstat (limited to 'gnulib/tests/test-atan2f.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-atan2f.c | 60 |
2 files changed, 60 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-atan2f.c b/gnulib/tests/test-atan2f.c new file mode 100644 index 0000000..bcc17c3 --- /dev/null +++ b/gnulib/tests/test-atan2f.c @@ -0,0 +1,60 @@ +/* Test of atan2f() function. + Copyright (C) 2010-2011 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>, 2010-2011. */ + +#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; +} |