Mercurial > hg > octave-lyh > gnulib-hg
changeset 16406:cf418c889016
Tests for module 'fabsl'.
* modules/fabsl-tests: New file.
* tests/test-fabsl.c: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 25 Feb 2012 13:22:17 +0100 |
parents | e393287b3d95 |
children | dfbb60f78aef |
files | ChangeLog modules/fabsl-tests tests/test-fabsl.c |
diffstat | 3 files changed, 78 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2012-02-25 Bruno Haible <bruno@clisp.org> + Tests for module 'fabsl'. + * modules/fabsl-tests: New file. + * tests/test-fabsl.c: New file. + New module 'fabsl'. * lib/math.in.h (fabsl): New declaration. * lib/fabsl.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/fabsl-tests @@ -0,0 +1,14 @@ +Files: +tests/test-fabsl.c +tests/signature.h +tests/minus-zero.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-fabsl +check_PROGRAMS += test-fabsl +test_fabsl_LDADD = $(LDADD) @FABSL_LIBM@
new file mode 100644 --- /dev/null +++ b/tests/test-fabsl.c @@ -0,0 +1,60 @@ +/* Test of fabsl() function. + Copyright (C) 2010-2012 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>, 2010-2012. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (fabsl, long double, (long double)); + +#include <string.h> + +#include "macros.h" +#include "minus-zero.h" + +volatile long double x; +long double y; +long double zero = 0.0L; + +int +main () +{ + /* A particular positive value. */ + x = 0.6L; + y = fabsl (x); + ASSERT (y == 0.6L); + + /* A particular negative value. */ + x = -0.6L; + y = fabsl (x); + ASSERT (y == 0.6L); + + /* Signed zero. */ + x = 0.0L; + y = fabsl (x); + ASSERT (y == 0.0L); + ASSERT (memcmp (&y, &zero, sizeof y) == 0); + + x = minus_zerol; + y = fabsl (x); + ASSERT (y == 0.0L); + ASSERT (memcmp (&y, &zero, sizeof y) == 0); + + return 0; +}