Mercurial > hg > octave-lyh > gnulib-hg
changeset 15891:9a3dbe3ea81d
Tests for module 'atan2f'.
* modules/atan2f-tests: New file.
* tests/test-atan2f.c: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 09 Oct 2011 00:32:11 +0200 |
parents | 52fb6ed99832 |
children | 015ce14d35f2 |
files | ChangeLog modules/atan2f-tests tests/test-atan2f.c |
diffstat | 3 files changed, 77 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2011-10-08 Bruno Haible <bruno@clisp.org> + Tests for module 'atan2f'. + * modules/atan2f-tests: New file. + * tests/test-atan2f.c: New file. + New module 'atan2f'. * lib/math.in.h (atan2f): New declaration. * lib/atan2f.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/atan2f-tests @@ -0,0 +1,13 @@ +Files: +tests/test-atan2f.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-atan2f +check_PROGRAMS += test-atan2f +test_atan2f_LDADD = $(LDADD) @ATAN2F_LIBM@
new file mode 100644 --- /dev/null +++ b/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; +}