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Diffstat (limited to 'gnulib/tests/test-round1.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-round1.c | 73 |
2 files changed, 73 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-round1.c b/gnulib/tests/test-round1.c new file mode 100644 index 0000000..f99ec1d --- /dev/null +++ b/gnulib/tests/test-round1.c @@ -0,0 +1,73 @@ +/* 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-trunc.c. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (round, double, (double)); + +#include "isnand-nolibm.h" +#include "minus-zero.h" +#include "infinity.h" +#include "nan.h" +#include "macros.h" + +int +main () +{ + /* Zero. */ + ASSERT (round (0.0) == 0.0); + ASSERT (round (minus_zerod) == 0.0); + /* Positive numbers. */ + ASSERT (round (0.3) == 0.0); + ASSERT (round (0.5) == 1.0); + ASSERT (round (0.7) == 1.0); + ASSERT (round (1.0) == 1.0); + ASSERT (round (1.5) == 2.0); + ASSERT (round (2.5) == 3.0); + ASSERT (round (1.999) == 2.0); + ASSERT (round (2.0) == 2.0); + ASSERT (round (65535.999) == 65536.0); + ASSERT (round (65536.0) == 65536.0); + ASSERT (round (65536.001) == 65536.0); + ASSERT (round (2.341e31) == 2.341e31); + /* Negative numbers. */ + ASSERT (round (-0.3) == 0.0); + ASSERT (round (-0.5) == -1.0); + ASSERT (round (-0.7) == -1.0); + ASSERT (round (-1.0) == -1.0); + ASSERT (round (-1.5) == -2.0); + ASSERT (round (-2.5) == -3.0); + ASSERT (round (-1.999) == -2.0); + ASSERT (round (-2.0) == -2.0); + ASSERT (round (-65535.999) == -65536.0); + ASSERT (round (-65536.0) == -65536.0); + ASSERT (round (-65536.001) == -65536.0); + ASSERT (round (-2.341e31) == -2.341e31); + /* Infinite numbers. */ + ASSERT (round (Infinityd ()) == Infinityd ()); + ASSERT (round (- Infinityd ()) == - Infinityd ()); + /* NaNs. */ + ASSERT (isnand (round (NaNd ()))); + + return 0; +} |