120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/* $NetBSD: t_infinity.c,v 1.6 2012/09/26 07:24:38 jruoho Exp $ */
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/*-
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* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Martin Husemann <martin@NetBSD.org>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_infinity.c,v 1.6 2012/09/26 07:24:38 jruoho Exp $");
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#include <atf-c.h>
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#include <math.h>
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#include <float.h>
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#include <stdlib.h>
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ATF_TC(infinity_float);
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ATF_TC_HEAD(infinity_float, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"check FPU generated infinite float values");
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}
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ATF_TC_BODY(infinity_float, tc)
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{
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float v;
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v = FLT_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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v = -FLT_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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}
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ATF_TC(infinity_double);
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ATF_TC_HEAD(infinity_double, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"check FPU generated infinite double values");
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}
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ATF_TC_BODY(infinity_double, tc)
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{
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double v;
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v = DBL_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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v = -DBL_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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}
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ATF_TC(infinity_long_double);
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ATF_TC_HEAD(infinity_long_double, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"check FPU generated infinite long double values");
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}
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ATF_TC_BODY(infinity_long_double, tc)
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{
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#ifndef LDBL_MAX
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atf_tc_skip("no long double support on this architecture");
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return;
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#else
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long double v;
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v = LDBL_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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v = -LDBL_MAX;
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v *= v;
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ATF_REQUIRE(isinf(v));
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ATF_REQUIRE(fpclassify(v) == FP_INFINITE);
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#endif
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, infinity_float);
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ATF_TP_ADD_TC(tp, infinity_double);
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ATF_TP_ADD_TC(tp, infinity_long_double);
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return atf_no_error();
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}
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