Mercurial > gnulib
view tests/test-hypot-ieee.h @ 17364:7524d97ae56f
stdalign: port to stricter ISO C11
ISO C11 says that _Alignof's operand must be a parenthesized type.
Problem reported by Eli Zaretskii in
<http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00960.html>.
* doc/posix-headers/stdalign.texi (stdalign.h): Document this.
* m4/stdalign.m4 (gl_STDALIGN_H): Don't use _Alignof (expr).
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Fri, 29 Mar 2013 19:47:13 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Test of hypot*() function family. Copyright (C) 2012-2013 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. */ /* Infinity. */ ASSERT (HYPOT (INFINITY, L_(2.0)) == INFINITY); ASSERT (HYPOT (- INFINITY, L_(2.0)) == INFINITY); ASSERT (HYPOT (INFINITY, - L_(2.0)) == INFINITY); ASSERT (HYPOT (- INFINITY, - L_(2.0)) == INFINITY); ASSERT (HYPOT (L_(2.0), INFINITY) == INFINITY); ASSERT (HYPOT (L_(2.0), - INFINITY) == INFINITY); ASSERT (HYPOT (- L_(2.0), INFINITY) == INFINITY); ASSERT (HYPOT (- L_(2.0), - INFINITY) == INFINITY); /* Mixed Infinity and NaN. */ ASSERT (HYPOT (INFINITY, NAN) == INFINITY); ASSERT (HYPOT (- INFINITY, NAN) == INFINITY); ASSERT (HYPOT (NAN, INFINITY) == INFINITY); ASSERT (HYPOT (NAN, - INFINITY) == INFINITY); /* NaN. */ ASSERT (ISNAN (HYPOT (NAN, L_(2.0)))); ASSERT (ISNAN (HYPOT (NAN, - L_(2.0)))); ASSERT (ISNAN (HYPOT (L_(2.0), NAN))); ASSERT (ISNAN (HYPOT (- L_(2.0), NAN))); }