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Diffstat (limited to 'gnulib/tests/test-rintf.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-rintf.c | 91 |
2 files changed, 91 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-rintf.c b/gnulib/tests/test-rintf.c new file mode 100644 index 0000000..29d77ef --- /dev/null +++ b/gnulib/tests/test-rintf.c @@ -0,0 +1,91 @@ +/* Test of rintf() function. + Copyright (C) 2010-2011 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>, 2010. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (rintf, float, (float)); + +#include <float.h> +#include <stdio.h> + +#include "isnanf-nolibm.h" +#include "minus-zero.h" +#include "infinity.h" +#include "nan.h" +#include "macros.h" + +int +main () +{ + /* Consider the current rounding mode, cf. + <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html> */ + if (FLT_ROUNDS == 1) + { + /* The current rounding mode is round-to-nearest + (the default in IEEE 754). */ + + /* Zero. */ + ASSERT (rintf (0.0f) == 0.0f); + ASSERT (rintf (minus_zerof) == 0.0f); + /* Positive numbers. */ + ASSERT (rintf (0.3f) == 0.0f); + ASSERT (rintf (0.5f) == 0.0f); /* unlike roundf() */ + ASSERT (rintf (0.7f) == 1.0f); + ASSERT (rintf (1.0f) == 1.0f); + ASSERT (rintf (1.5f) == 2.0f); + ASSERT (rintf (1.999f) == 2.0f); + ASSERT (rintf (2.0f) == 2.0f); + ASSERT (rintf (2.1f) == 2.0f); + ASSERT (rintf (2.5f) == 2.0f); /* unlike roundf() */ + ASSERT (rintf (2.7f) == 3.0f); + ASSERT (rintf (65535.99f) == 65536.0f); + ASSERT (rintf (65536.0f) == 65536.0f); + ASSERT (rintf (65536.01f) == 65536.0f); + ASSERT (rintf (2.341e31f) == 2.341e31f); + /* Negative numbers. */ + ASSERT (rintf (-0.3f) == 0.0f); + ASSERT (rintf (-0.5f) == 0.0f); /* unlike roundf() */ + ASSERT (rintf (-0.7f) == -1.0f); + ASSERT (rintf (-1.0f) == -1.0f); + ASSERT (rintf (-1.5f) == -2.0f); + ASSERT (rintf (-1.999f) == -2.0f); + ASSERT (rintf (-2.0f) == -2.0f); + ASSERT (rintf (-2.1f) == -2.0f); + ASSERT (rintf (-2.5f) == -2.0f); /* unlike roundf() */ + ASSERT (rintf (-2.7f) == -3.0f); + ASSERT (rintf (-65535.99f) == -65536.0f); + ASSERT (rintf (-65536.0f) == -65536.0f); + ASSERT (rintf (-65536.01f) == -65536.0f); + ASSERT (rintf (-2.341e31f) == -2.341e31f); + /* Infinite numbers. */ + ASSERT (rintf (Infinityf ()) == Infinityf ()); + ASSERT (rintf (- Infinityf ()) == - Infinityf ()); + /* NaNs. */ + ASSERT (isnanf (rintf (NaNf ()))); + + return 0; + } + else + { + fputs ("Skipping test: non-standard rounding mode\n", stderr); + return 77; + } +} |