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Diffstat (limited to 'gnulib/tests/test-roundl.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-roundl.c | 80 |
2 files changed, 80 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-roundl.c b/gnulib/tests/test-roundl.c new file mode 100644 index 0000000..7af95a4 --- /dev/null +++ b/gnulib/tests/test-roundl.c @@ -0,0 +1,80 @@ +/* Test of rounding to nearest, breaking ties away from zero. + Copyright (C) 2007-2011 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* 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; +} |