Mercurial > hg > octave-lojdl > gnulib-hg
diff tests/test-log10-ieee.h @ 16740:c25dcde7c69c
Tests for module 'log10f-ieee'.
* modules/log10f-ieee-tests: New file.
* tests/test-log10f-ieee.c: New file.
* tests/test-log10-ieee.h: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 01 Apr 2012 16:59:53 +0200 |
parents | |
children | e542fd46ad6f |
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new file mode 100644 --- /dev/null +++ b/tests/test-log10-ieee.h @@ -0,0 +1,40 @@ +/* Test of log10*() function family. + Copyright (C) 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/>. */ + +static void +test_function (void) +{ + /* [MX] shaded specification in POSIX. */ + + /* Negative arguments. */ + ASSERT (ISNAN (LOG10 (- L_(0.00001)))); + ASSERT (ISNAN (LOG10 (- L_(1.0)))); + ASSERT (ISNAN (LOG10 (- L_(1000000.0)))); + ASSERT (ISNAN (LOG10 (- INFINITY))); + + /* NaN. */ + ASSERT (ISNAN (LOG10 (NAN))); + + /* Only rational value. */ + { + DOUBLE z = LOG10 (L_(1.0)); + ASSERT (z == L_(0.0)); + ASSERT (!signbit (z)); + } + + /* Infinity. */ + ASSERT (LOG10 (INFINITY) == INFINITY); +}