Mercurial > gnulib
view tests/test-truncl.c @ 40167:c1aa6d1185ea
strtold: Add tests.
* tests/test-strtold.c: New file, based on tests/test-strtod.c.
* modules/strtold-tests: New file.
author | Bruno Haible <bruno@clisp.org> |
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date | Wed, 30 Jan 2019 03:53:43 +0100 |
parents | b06060465f09 |
children |
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/* Test of rounding towards zero. Copyright (C) 2007-2019 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/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ #include <config.h> #include <math.h> #include "signature.h" SIGNATURE_CHECK (truncl, long double, (long double)); #include <float.h> #include "fpucw.h" #include "isnanl-nolibm.h" #include "minus-zero.h" #include "infinity.h" #include "nan.h" #include "macros.h" int main () { DECL_LONG_DOUBLE_ROUNDING BEGIN_LONG_DOUBLE_ROUNDING (); /* Zero. */ ASSERT (truncl (0.0L) == 0.0L); ASSERT (truncl (minus_zerol) == 0.0L); /* Positive numbers. */ ASSERT (truncl (0.3L) == 0.0L); ASSERT (truncl (0.7L) == 0.0L); ASSERT (truncl (1.0L) == 1.0L); ASSERT (truncl (1.5L) == 1.0L); ASSERT (truncl (1.999L) == 1.0L); ASSERT (truncl (2.0L) == 2.0L); ASSERT (truncl (65535.999L) == 65535.0L); ASSERT (truncl (65536.0L) == 65536.0L); ASSERT (truncl (2.341e31L) == 2.341e31L); /* Negative numbers. */ ASSERT (truncl (-0.3L) == 0.0L); ASSERT (truncl (-0.7L) == 0.0L); ASSERT (truncl (-1.0L) == -1.0L); ASSERT (truncl (-1.5L) == -1.0L); ASSERT (truncl (-1.999L) == -1.0L); ASSERT (truncl (-2.0L) == -2.0L); ASSERT (truncl (-65535.999L) == -65535.0L); ASSERT (truncl (-65536.0L) == -65536.0L); ASSERT (truncl (-2.341e31L) == -2.341e31L); /* Infinite numbers. */ ASSERT (truncl (Infinityl ()) == Infinityl ()); ASSERT (truncl (- Infinityl ()) == - Infinityl ()); /* NaNs. */ ASSERT (isnanl (truncl (NaNl ()))); return 0; }