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/* $NetBSD: t_infinity.c,v 1.6 2012/09/26 07:24:38 jruoho Exp $ */
/*-
* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Martin Husemann <martin@NetBSD.org>.
*
* 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 <sys/cdefs.h>
__RCSID("$NetBSD: t_infinity.c,v 1.6 2012/09/26 07:24:38 jruoho Exp $");
#include <atf-c.h>
#include <math.h>
#include <float.h>
#include <stdlib.h>
ATF_TC(infinity_float);
ATF_TC_HEAD(infinity_float, tc)
{
atf_tc_set_md_var(tc, "descr",
"check FPU generated infinite float values");
}
ATF_TC_BODY(infinity_float, tc)
{
float v;
v = FLT_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
v = -FLT_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
}
ATF_TC(infinity_double);
ATF_TC_HEAD(infinity_double, tc)
{
atf_tc_set_md_var(tc, "descr",
"check FPU generated infinite double values");
}
ATF_TC_BODY(infinity_double, tc)
{
double v;
v = DBL_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
v = -DBL_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
}
ATF_TC(infinity_long_double);
ATF_TC_HEAD(infinity_long_double, tc)
{
atf_tc_set_md_var(tc, "descr",
"check FPU generated infinite long double values");
}
ATF_TC_BODY(infinity_long_double, tc)
{
#ifndef LDBL_MAX
atf_tc_skip("no long double support on this architecture");
return;
#else
long double v;
v = LDBL_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
v = -LDBL_MAX;
v *= v;
ATF_REQUIRE(isinf(v));
ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
#endif
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, infinity_float);
ATF_TP_ADD_TC(tp, infinity_double);
ATF_TP_ADD_TC(tp, infinity_long_double);
return atf_no_error();
}
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