Mercurial > hg > octave-lojdl > gnulib-hg
changeset 16443:fc58a132e1b4
Tests for module 'ldexpf-ieee'.
* modules/ldexpf-ieee-tests: New file.
* tests/test-ldexpf-ieee.c: New file.
* tests/test-ldexp-ieee.h: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 26 Feb 2012 16:31:19 +0100 |
parents | 4d40d9e95523 |
children | 578f875c1ad5 |
files | ChangeLog modules/ldexpf-ieee-tests tests/test-ldexp-ieee.h tests/test-ldexpf-ieee.c |
diffstat | 4 files changed, 116 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2012-02-26 Bruno Haible <bruno@clisp.org> + Tests for module 'ldexpf-ieee'. + * modules/ldexpf-ieee-tests: New file. + * tests/test-ldexpf-ieee.c: New file. + * tests/test-ldexp-ieee.h: New file. + New module 'ldexpf-ieee'. * modules/ldexpf-ieee: New file.
new file mode 100644 --- /dev/null +++ b/modules/ldexpf-ieee-tests @@ -0,0 +1,19 @@ +Files: +tests/test-ldexpf-ieee.c +tests/test-ldexp-ieee.h +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-ldexpf-ieee +check_PROGRAMS += test-ldexpf-ieee +test_ldexpf_ieee_LDADD = $(LDADD) @LDEXPF_LIBM@
new file mode 100644 --- /dev/null +++ b/tests/test-ldexp-ieee.h @@ -0,0 +1,47 @@ +/* Test of ldexp*() function family. + 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/>. */ + +static void +test_function (void) +{ + int exp; + + /* [MX] shaded specification in POSIX. */ + + /* NaN. */ + for (exp = -100000; exp <= 100000; exp += 100000) + ASSERT (ISNAN (LDEXP (NAN, exp))); + + /* Signed zero. */ + for (exp = -100000; exp <= 100000; exp += 100000) + { + DOUBLE z = LDEXP (L_(0.0), exp); + ASSERT (z == L_(0.0)); + ASSERT (!signbit (z)); + } + for (exp = -100000; exp <= 100000; exp += 100000) + { + DOUBLE z = LDEXP (MINUS_ZERO, exp); + ASSERT (z == L_(0.0)); + ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); + } + + /* Infinity. */ + for (exp = -100000; exp <= 100000; exp += 100000) + ASSERT (LDEXP (INFINITY, exp) == INFINITY); + for (exp = -100000; exp <= 100000; exp += 100000) + ASSERT (LDEXP (- INFINITY, exp) == - INFINITY); +}
new file mode 100644 --- /dev/null +++ b/tests/test-ldexpf-ieee.c @@ -0,0 +1,45 @@ +/* Test of ldexpf() function. + 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" + +#undef INFINITY +#undef NAN + +#define DOUBLE float +#define ISNAN isnanf +#define INFINITY Infinityf () +#define NAN NaNf () +#define L_(literal) literal##f +#define MINUS_ZERO minus_zerof +#define LDEXP ldexpf +#include "test-ldexp-ieee.h" + +int +main () +{ + test_function (); + + return 0; +}