Commit f58044bf authored by Bruno Haible's avatar Bruno Haible

Tests for module 'modff-ieee'.

* modules/modff-ieee-tests: New file.
* tests/test-modff-ieee.c: New file.
* tests/test-modf-ieee.h: New file.
parent 5b32b36e
2012-02-26 Bruno Haible <bruno@clisp.org>
Tests for module 'modff-ieee'.
* modules/modff-ieee-tests: New file.
* tests/test-modff-ieee.c: New file.
* tests/test-modf-ieee.h: New file.
New module 'modff-ieee'.
* modules/modff-ieee: New file.
Files:
tests/test-modff-ieee.c
tests/test-modf-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-modff-ieee
check_PROGRAMS += test-modff-ieee
test_modff_ieee_LDADD = $(LDADD) @MODFF_LIBM@
/* Test of modf*() 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)
{
/* [MX] shaded specification in POSIX. */
/* NaN. */
{
DOUBLE integer_part = -9999;
DOUBLE fractional_part = MODF (NAN, &integer_part);
ASSERT (ISNAN (integer_part));
ASSERT (ISNAN (fractional_part));
}
/* Infinity. */
{
DOUBLE integer_part = -9999;
DOUBLE fractional_part = MODF (INFINITY, &integer_part);
ASSERT (integer_part == INFINITY);
ASSERT (fractional_part == L_(0.0));
ASSERT (!signbit (fractional_part));
}
{
DOUBLE integer_part = -9999;
DOUBLE fractional_part = MODF (- INFINITY, &integer_part);
ASSERT (integer_part == - INFINITY);
ASSERT (fractional_part == L_(0.0));
ASSERT (!!signbit (fractional_part) == !!signbit (MINUS_ZERO));
}
}
/* Test of modff() 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 MODF modff
#include "test-modf-ieee.h"
int
main ()
{
test_function ();
return 0;
}
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