diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | modules/frexpf-ieee-tests | 18 | ||||
| -rw-r--r-- | tests/test-frexpf-ieee.c | 67 |
3 files changed, 89 insertions, 0 deletions
@@ -1,5 +1,9 @@ 2012-02-26 Bruno Haible <bruno@clisp.org> + Tests for module 'frexpf-ieee'. + * modules/frexpf-ieee-tests: New file. + * tests/test-frexpf-ieee.c: New file. + New module 'frexpf-ieee'. * modules/frexpf-ieee: New file. diff --git a/modules/frexpf-ieee-tests b/modules/frexpf-ieee-tests new file mode 100644 index 0000000000..ca8d7eb72d --- /dev/null +++ b/modules/frexpf-ieee-tests @@ -0,0 +1,18 @@ +Files: +tests/test-frexpf-ieee.c +tests/minus-zero.h +tests/infinity.h +tests/nan.h +tests/macros.h + +Depends-on: +isnanf-nolibm +float +signbit + +configure.ac: + +Makefile.am: +TESTS += test-frexpf-ieee +check_PROGRAMS += test-frexpf-ieee +test_frexpf_ieee_LDADD = $(LDADD) @FREXPF_LIBM@ diff --git a/tests/test-frexpf-ieee.c b/tests/test-frexpf-ieee.c new file mode 100644 index 0000000000..d8e3f730ac --- /dev/null +++ b/tests/test-frexpf-ieee.c @@ -0,0 +1,67 @@ +/* Test of splitting a double into fraction and mantissa. + Copyright (C) 2012 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/>. */ + +#include <config.h> + +#include <math.h> + +#include "isnanf-nolibm.h" +#include "minus-zero.h" +#include "infinity.h" +#include "nan.h" +#include "macros.h" + +int +main () +{ + /* [MX] shaded specification in POSIX. */ + + /* NaN. */ + { + int exp = -9999; + float mantissa; + mantissa = frexpf (NaNf (), &exp); + ASSERT (isnanf (mantissa)); + } + + /* Signed zero. */ + { + int exp = -9999; + float mantissa; + mantissa = frexpf (0.0f, &exp); + ASSERT (mantissa == 0.0f); + ASSERT (!signbit (mantissa)); + ASSERT (exp == 0); + } + { + int exp = -9999; + float mantissa; + mantissa = frexpf (minus_zerof, &exp); + ASSERT (mantissa == 0.0f); + ASSERT (!!signbit (mantissa) == !!signbit (minus_zerof)); + ASSERT (exp == 0); + } + + /* Infinity. */ + { + int exp = -9999; + float mantissa; + mantissa = frexpf (Infinityf (), &exp); + ASSERT (mantissa == Infinityf ()); + } + + return 0; +} |