Mercurial > gnulib
view tests/test-roundl.c @ 36940:c741bc27922a
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
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date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 81b1562e3d8b |
children | 344018b6e5d7 |
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/* Test of rounding to nearest, breaking ties away from zero. Copyright (C) 2007-2013 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, 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 Ben Pfaff <blp@gnu.org>, 2007. Based heavily on Bruno Haible's test-truncl.c. */ #include <config.h> #include <math.h> #include "signature.h" SIGNATURE_CHECK (roundl, 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 (roundl (0.0L) == 0.0L); ASSERT (roundl (minus_zerol) == 0.0L); /* Positive numbers. */ ASSERT (roundl (0.3L) == 0.0L); ASSERT (roundl (0.5L) == 1.0L); ASSERT (roundl (0.7L) == 1.0L); ASSERT (roundl (1.0L) == 1.0L); ASSERT (roundl (1.5L) == 2.0L); ASSERT (roundl (2.5L) == 3.0L); ASSERT (roundl (1.999L) == 2.0L); ASSERT (roundl (2.0L) == 2.0L); ASSERT (roundl (65535.999L) == 65536.0L); ASSERT (roundl (65536.0L) == 65536.0L); ASSERT (roundl (65536.001L) == 65536.0L); ASSERT (roundl (2.341e31L) == 2.341e31L); /* Negative numbers. */ ASSERT (roundl (-0.3L) == 0.0L); ASSERT (roundl (-0.5L) == -1.0L); ASSERT (roundl (-0.7L) == -1.0L); ASSERT (roundl (-1.0L) == -1.0L); ASSERT (roundl (-1.5L) == -2.0L); ASSERT (roundl (-2.5L) == -3.0L); ASSERT (roundl (-1.999L) == -2.0L); ASSERT (roundl (-2.0L) == -2.0L); ASSERT (roundl (-65535.999L) == -65536.0L); ASSERT (roundl (-65536.0L) == -65536.0L); ASSERT (roundl (-65536.001L) == -65536.0L); ASSERT (roundl (-2.341e31L) == -2.341e31L); /* Infinite numbers. */ ASSERT (roundl (Infinityl ()) == Infinityl ()); ASSERT (roundl (- Infinityl ()) == - Infinityl ()); /* NaNs. */ ASSERT (isnanl (roundl (NaNl ()))); return 0; }