Mercurial > gnulib
view tests/test-ldexp-ieee.h @ 40149:e1f68c6256cf
vma-iter: Add support for Android.
* lib/vma-iter.h (VMA_ITERATE_SUPPORTED): Define on Android as well.
* lib/vma-iter.c: Treat Android like Linux.
* lib/get-rusage-data.c (get_rusage_data): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 27 Jan 2019 04:57:29 +0100 |
parents | b06060465f09 |
children |
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/* Test of ldexp*() function family. Copyright (C) 2012-2019 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 <https://www.gnu.org/licenses/>. */ static void test_function (void) { int exp; /* [MX] shaded specification in POSIX. */ /* NaN. */ for (exp = -100000; exp <= 100000; exp += 100000) ASSERT (ISNAN (LDEXP (NAN, exp))); /* Signed zero. */ for (exp = -100000; exp <= 100000; exp += 100000) { DOUBLE z = LDEXP (L_(0.0), exp); ASSERT (z == L_(0.0)); ASSERT (!signbit (z)); } for (exp = -100000; exp <= 100000; exp += 100000) { DOUBLE z = LDEXP (MINUS_ZERO, exp); ASSERT (z == L_(0.0)); ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); } /* Infinity. */ for (exp = -100000; exp <= 100000; exp += 100000) ASSERT (LDEXP (INFINITY, exp) == INFINITY); for (exp = -100000; exp <= 100000; exp += 100000) ASSERT (LDEXP (- INFINITY, exp) == - INFINITY); }