Mercurial > hg > octave-lojdl > gnulib-hg
changeset 15848:0dd7e4732abc
Tests for module 'ldexpf'.
* modules/ldexpf-tests: New file.
* tests/test-ldexpf.c: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 07 Oct 2011 11:18:49 +0200 |
parents | cd98f212217e |
children | 6e98e4b89a4f |
files | ChangeLog modules/ldexpf-tests tests/test-ldexpf.c |
diffstat | 3 files changed, 65 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2011-10-07 Bruno Haible <bruno@clisp.org> + Tests for module 'ldexpf'. + * modules/ldexpf-tests: New file. + * tests/test-ldexpf.c: New file. + New module 'ldexpf'. * lib/math.in.h (ldexpf): New declaration. * lib/ldexpf.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/ldexpf-tests @@ -0,0 +1,13 @@ +Files: +tests/test-ldexpf.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-ldexpf +check_PROGRAMS += test-ldexpf +test_ldexpf_LDADD = $(LDADD) @LDEXPF_LIBM@
new file mode 100644 --- /dev/null +++ b/tests/test-ldexpf.c @@ -0,0 +1,48 @@ +/* Test of ldexpf() 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. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (ldexpf, float, (float, int)); + +#include "macros.h" + +volatile float x; +float y; + +int +main () +{ + /* A particular value. */ + x = 0.6f; + y = ldexp (x, 0); + ASSERT (y >= 0.59999999f && y <= 0.60000001f); + + x = 0.6f; + y = ldexp (x, 1); + ASSERT (y >= 1.1999999f && y <= 1.2000001f); + + x = 0.6f; + y = ldexp (x, -1); + ASSERT (y >= 0.29999999f && y <= 0.30000001f); + + return 0; +}