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/*
* Copyright (c) 2013 Andreas Sandberg
* All rights reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Andreas Sandberg
*/
#include <fputils/fp80.h>
#include "test_helper.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
/* We provide our own version of isinf_sgn since the C99 standard
* doesn't guarantee that isinf() returns the sign of the infinity
* (most implementations do). */
static inline int
isinf_sgn(double x)
{
return isinf(x) ? (signbit(x) ? -1 : 1) : 0;
}
static void
test_fp80_cvtd_class(const char *name, fp80_t fin, int class)
{
double d = fp80_cvtd(fin);
if (fpclassify(d) != class) {
test_diag("wrong class");
test_fail(name);
} else {
test_ok(name);
}
}
static void
test_fp80_cvtd_inf(const char *name, fp80_t fin, int expected_inf_class)
{
double d = fp80_cvtd(fin);
if (isinf_sgn(d) != expected_inf_class) {
test_diag("wrong infinity type");
test_fail(name);
} else {
test_ok(name);
}
}
int
main(int argc, char *argv[])
{
test_init(6);
test_fp80_cvtd_inf("fp80->double +inf", fp80_pinf, 1);
test_fp80_cvtd_inf("fp80->double -inf", fp80_ninf, -1);
test_fp80_cvtd_class("fp80->double qnan", fp80_qnan, FP_NAN);
test_fp80_cvtd_class("fp80->double qnani", fp80_qnani, FP_NAN);
test_fp80_cvtd_class("fp80->double snan", fp80_snan, FP_NAN);
test_fp80_cvtd_class("fp80->double nan", fp80_nan, FP_NAN);
test_exit();
}
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