Mercurial > hg > octave-lyh > gnulib-hg
changeset 15839:bb3ef01b637c
Tests for module 'modff'.
* modules/modff-tests: New file.
* tests/test-modff.c: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Thu, 06 Oct 2011 02:49:48 +0200 |
parents | 0e07b354626a |
children | 61fe30185561 |
files | ChangeLog modules/modff-tests tests/test-modff.c |
diffstat | 3 files changed, 65 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2011-10-05 Bruno Haible <bruno@clisp.org> + Tests for module 'modff'. + * modules/modff-tests: New file. + * tests/test-modff.c: New file. + New module 'modff'. * lib/math.in.h (modff): New declaration. * lib/modff.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/modff-tests @@ -0,0 +1,13 @@ +Files: +tests/test-modff.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-modff +check_PROGRAMS += test-modff +test_modff_LDADD = $(LDADD) @MODFF_LIBM@
new file mode 100644 --- /dev/null +++ b/tests/test-modff.c @@ -0,0 +1,48 @@ +/* Test of modff() 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 (modff, float, (float, float *)); + +#include "macros.h" + +volatile float x; +float y; +float z; + +int +main () +{ + /* A particular positive value. */ + x = 5.972407f; + y = modff (x, &z); + ASSERT (y >= 0.972406f && y <= 0.972408f); + ASSERT (z == 5.0f); + + /* A particular negative value. */ + x = -5.972407f; + y = modff (x, &z); + ASSERT (y >= -0.972408f && y <= -0.972406f); + ASSERT (z == -5.0f); + + return 0; +}