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Diffstat (limited to 'gnulib/tests/test-roundf1.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-roundf1.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-roundf1.c b/gnulib/tests/test-roundf1.c new file mode 100644 index 0000000..8413e82 --- /dev/null +++ b/gnulib/tests/test-roundf1.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-truncf.c. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (roundf, float, (float)); + +#include "isnanf-nolibm.h" +#include "minus-zero.h" +#include "infinity.h" +#include "nan.h" +#include "macros.h" + +int +main () +{ + /* Zero. */ + ASSERT (roundf (0.0f) == 0.0f); + ASSERT (roundf (minus_zerof) == 0.0f); + /* Positive numbers. */ + ASSERT (roundf (0.3f) == 0.0f); + ASSERT (roundf (0.5f) == 1.0f); + ASSERT (roundf (0.7f) == 1.0f); + ASSERT (roundf (1.0f) == 1.0f); + ASSERT (roundf (1.5f) == 2.0f); + ASSERT (roundf (2.5f) == 3.0f); + ASSERT (roundf (1.999f) == 2.0f); + ASSERT (roundf (2.0f) == 2.0f); + ASSERT (roundf (65535.99f) == 65536.0f); + ASSERT (roundf (65536.0f) == 65536.0f); + ASSERT (roundf (65536.01f) == 65536.0f); + ASSERT (roundf (2.341e31f) == 2.341e31f); + /* Negative numbers. */ + ASSERT (roundf (-0.3f) == 0.0f); + ASSERT (roundf (-0.5f) == -1.0f); + ASSERT (roundf (-0.7f) == -1.0f); + ASSERT (roundf (-1.0f) == -1.0f); + ASSERT (roundf (-1.5f) == -2.0f); + ASSERT (roundf (-2.5f) == -3.0f); + ASSERT (roundf (-1.999f) == -2.0f); + ASSERT (roundf (-2.0f) == -2.0f); + ASSERT (roundf (-65535.99f) == -65536.0f); + ASSERT (roundf (-65536.0f) == -65536.0f); + ASSERT (roundf (-65536.01f) == -65536.0f); + ASSERT (roundf (-2.341e31f) == -2.341e31f); + /* Infinite numbers. */ + ASSERT (roundf (Infinityf ()) == Infinityf ()); + ASSERT (roundf (- Infinityf ()) == - Infinityf ()); + /* NaNs. */ + ASSERT (isnanf (roundf (NaNf ()))); + + return 0; +} |