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Diffstat (limited to 'gnulib/tests/test-rintl.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-rintl.c | 96 |
2 files changed, 96 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-rintl.c b/gnulib/tests/test-rintl.c new file mode 100644 index 0000000..13c5119 --- /dev/null +++ b/gnulib/tests/test-rintl.c @@ -0,0 +1,96 @@ +/* Test of rintl() 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 (rintl, long double, (long double)); + +#include <float.h> +#include <stdio.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 (); + + /* 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 (rintl (0.0L) == 0.0L); + ASSERT (rintl (minus_zerol) == 0.0L); + /* Positive numbers. */ + ASSERT (rintl (0.3L) == 0.0L); + ASSERT (rintl (0.5L) == 0.0L); /* unlike roundl() */ + ASSERT (rintl (0.7L) == 1.0L); + ASSERT (rintl (1.0L) == 1.0L); + ASSERT (rintl (1.5L) == 2.0L); + ASSERT (rintl (1.999L) == 2.0L); + ASSERT (rintl (2.0L) == 2.0L); + ASSERT (rintl (2.1L) == 2.0L); + ASSERT (rintl (2.5L) == 2.0L); /* unlike roundl() */ + ASSERT (rintl (2.7L) == 3.0L); + ASSERT (rintl (65535.999L) == 65536.0L); + ASSERT (rintl (65536.0L) == 65536.0L); + ASSERT (rintl (65536.001L) == 65536.0L); + ASSERT (rintl (2.341e31L) == 2.341e31L); + /* Negative numbers. */ + ASSERT (rintl (-0.3L) == 0.0L); + ASSERT (rintl (-0.5L) == 0.0L); /* unlike roundl() */ + ASSERT (rintl (-0.7L) == -1.0L); + ASSERT (rintl (-1.0L) == -1.0L); + ASSERT (rintl (-1.5L) == -2.0L); + ASSERT (rintl (-1.999L) == -2.0L); + ASSERT (rintl (-2.0L) == -2.0L); + ASSERT (rintl (-2.1L) == -2.0L); + ASSERT (rintl (-2.5L) == -2.0L); /* unlike roundl() */ + ASSERT (rintl (-2.7L) == -3.0L); + ASSERT (rintl (-65535.999L) == -65536.0L); + ASSERT (rintl (-65536.0L) == -65536.0L); + ASSERT (rintl (-65536.001L) == -65536.0L); + ASSERT (rintl (-2.341e31L) == -2.341e31L); + /* Infinite numbers. */ + ASSERT (rintl (Infinityl ()) == Infinityl ()); + ASSERT (rintl (- Infinityl ()) == - Infinityl ()); + /* NaNs. */ + ASSERT (isnanl (rintl (NaNl ()))); + + return 0; + } + else + { + fputs ("Skipping test: non-standard rounding mode\n", stderr); + return 77; + } +} |