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/* $NetBSD: t_hypot.c,v 1.1 2016/01/24 20:26:47 gson Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <atf-c.h>
#include <math.h>
ATF_TC(hypot_integer);
ATF_TC_HEAD(hypot_integer, tc)
{
atf_tc_set_md_var(tc, "descr", "Test hypot with integer args");
}
ATF_TC_BODY(hypot_integer, tc)
{
/* volatile so hypotf() won't be evaluated at compile time */
volatile double a = 5;
volatile double b = 12;
ATF_CHECK(hypot(a, b) == 13.0);
}
ATF_TC(hypotf_integer);
ATF_TC_HEAD(hypotf_integer, tc)
{
atf_tc_set_md_var(tc, "descr", "Test hypotf with integer args");
}
ATF_TC_BODY(hypotf_integer, tc)
{
volatile float a = 5;
volatile float b = 12;
ATF_CHECK(hypotf(a, b) == 13.0f);
}
ATF_TC(pr50698);
ATF_TC_HEAD(pr50698, tc)
{
atf_tc_set_md_var(tc, "descr", "Check for the bug of PR 50698");
}
ATF_TC_BODY(pr50698, tc)
{
volatile float a = 1e-18f;
float val = hypotf(a, a);
ATF_CHECK(!isinf(val));
ATF_CHECK(!isnan(val));
}
#if __LDBL_MANT_DIG__ == 64
ATF_TC(hypotl_near_underflow);
ATF_TC_HEAD(hypotl_near_underflow, tc)
{
atf_tc_set_md_var(tc, "descr", "Test hypotl near underflow");
}
ATF_TC_BODY(hypotl_near_underflow, tc)
{
volatile long double a = 0x1.b2933cafa0bb7p-16383L;
volatile long double b = 0x1.fffffffffffffp-16351L;
volatile long double e = 0x1.fffffffffffffp-16351L;
volatile long double ulp = __LDBL_EPSILON__;
volatile long double val = hypotl(a, b);
ATF_CHECK(!isinf(val));
ATF_CHECK(fabsl(val - e) <= 2 * ulp);
}
#endif /* __LDBL_MANT_DIG__ == 64 */
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, hypot_integer);
ATF_TP_ADD_TC(tp, hypotf_integer);
ATF_TP_ADD_TC(tp, pr50698);
#if __LDBL_MANT_DIG__ == 64
ATF_TP_ADD_TC(tp, hypotl_near_underflow);
#endif /* __LDBL_MANT_DIG__ == 64 */
return atf_no_error();
}
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