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Diffstat (limited to 'gnulib/tests/test-floorf1.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-floorf1.c | 79 |
2 files changed, 79 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-floorf1.c b/gnulib/tests/test-floorf1.c new file mode 100644 index 0000000..38d4a50 --- /dev/null +++ b/gnulib/tests/test-floorf1.c @@ -0,0 +1,79 @@ +/* Test of rounding towards negative infinity. + 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 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 <http://www.gnu.org/licenses/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2007. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (floorf, float, (float)); + +#include "isnanf-nolibm.h" +#include "minus-zero.h" +#include "infinity.h" +#include "nan.h" +#include "macros.h" + +/* If IEEE compliance was not requested, the ICC compiler inlines its + own floorf assembly that turns -0.0f to 0.0f; but that is a correct + result when IEEE is not enforced. To avoid spurious failure, we + have to provide this dummy function in order to outsmart ICC's + inlining, and call our floorf through a function pointer. */ +static float +dummy (float f) +{ + return 0; +} + +int +main (int argc, char **argv _GL_UNUSED) +{ + float (*my_floorf) (float) = argc ? floorf : dummy; + + /* Zero. */ + ASSERT (my_floorf (0.0f) == 0.0f); + ASSERT (my_floorf (minus_zerof) == 0.0f); + /* Positive numbers. */ + ASSERT (my_floorf (0.3f) == 0.0f); + ASSERT (my_floorf (0.7f) == 0.0f); + ASSERT (my_floorf (1.0f) == 1.0f); + ASSERT (my_floorf (1.5f) == 1.0f); + ASSERT (my_floorf (1.999f) == 1.0f); + ASSERT (my_floorf (2.0f) == 2.0f); + ASSERT (my_floorf (65535.99f) == 65535.0f); + ASSERT (my_floorf (65536.0f) == 65536.0f); + ASSERT (my_floorf (2.341e31f) == 2.341e31f); + /* Negative numbers. */ + ASSERT (my_floorf (-0.3f) == -1.0f); + ASSERT (my_floorf (-0.7f) == -1.0f); + ASSERT (my_floorf (-1.0f) == -1.0f); + ASSERT (my_floorf (-1.001f) == -2.0f); + ASSERT (my_floorf (-1.5f) == -2.0f); + ASSERT (my_floorf (-1.999f) == -2.0f); + ASSERT (my_floorf (-2.0f) == -2.0f); + ASSERT (my_floorf (-65535.99f) == -65536.0f); + ASSERT (my_floorf (-65536.0f) == -65536.0f); + ASSERT (my_floorf (-2.341e31f) == -2.341e31f); + /* Infinite numbers. */ + ASSERT (my_floorf (Infinityf ()) == Infinityf ()); + ASSERT (my_floorf (- Infinityf ()) == - Infinityf ()); + /* NaNs. */ + ASSERT (isnanf (my_floorf (NaNf ()))); + + return 0; +} |