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146 lines
5.1 KiB
C
146 lines
5.1 KiB
C
/*-
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* Copyright (c) 2005-2008 David Schultz <das@FreeBSD.org>
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Test for lrint(), lrintf(), llrint(), and llrintf().
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*/
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#include <sys/cdefs.h>
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#include <fenv.h>
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#include <limits.h>
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#include <math.h>
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#include <stdio.h>
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#ifdef __i386__
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#include <ieeefp.h>
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#endif
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#include "test-utils.h"
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#define test(func, x, result, excepts) do { \
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ATF_CHECK(feclearexcept(FE_ALL_EXCEPT) == 0); \
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long long _r = (func)(x); \
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ATF_CHECK_MSG(_r == (result) || fetestexcept(FE_INVALID), \
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#func "(%Lg) returned %lld, expected %lld", (long double)x, _r, \
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(long long)(result)); \
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CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT & ALL_STD_EXCEPT, \
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"for %s(%s)", #func, #x); \
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} while (0)
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#define testall(x, result, excepts) do { \
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test(lrint, x, result, excepts); \
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test(lrintf, x, result, excepts); \
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test(lrintl, x, result, excepts); \
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test(llrint, x, result, excepts); \
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test(llrintf, x, result, excepts); \
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test(llrintl, x, result, excepts); \
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} while (0)
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#define IGNORE 0
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#pragma STDC FENV_ACCESS ON
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static void
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run_tests(void)
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{
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ATF_REQUIRE_EQ(0, fesetround(FE_DOWNWARD));
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testall(0.75, 0, FE_INEXACT);
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testall(-0.5, -1, FE_INEXACT);
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ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST));
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testall(0.0, 0, 0);
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testall(0.25, 0, FE_INEXACT);
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testall(0.5, 0, FE_INEXACT);
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testall(-2.5, -2, FE_INEXACT);
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testall(1.0, 1, 0);
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testall(0x12345000p0, 0x12345000, 0);
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testall(0x1234.fp0, 0x1235, FE_INEXACT);
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testall(INFINITY, IGNORE, FE_INVALID);
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testall(NAN, IGNORE, FE_INVALID);
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#if (LONG_MAX == 0x7fffffffl)
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ATF_REQUIRE_EQ(0, fesetround(FE_UPWARD));
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test(lrint, 0x7fffffff.8p0, IGNORE, FE_INVALID);
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test(lrint, -0x80000000.4p0, (long)-0x80000000l, FE_INEXACT);
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ATF_REQUIRE_EQ(0, fesetround(FE_DOWNWARD));
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test(lrint, -0x80000000.8p0, IGNORE, FE_INVALID);
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test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID);
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test(lrint, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT);
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test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID);
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test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
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ATF_REQUIRE_EQ(0, fesetround(FE_TOWARDZERO));
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test(lrint, 0x7fffffff.8p0, 0x7fffffffl, FE_INEXACT);
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test(lrint, -0x80000000.8p0, -0x80000000l, FE_INEXACT);
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test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID);
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test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID);
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test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
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#elif (LONG_MAX == 0x7fffffffffffffffll)
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ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST));
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test(lrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
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test(lrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
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test(lrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0);
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test(lrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0);
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test(lrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
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test(lrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
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test(lrint, -0x8000000000000000.0p0, (long long)-0x8000000000000000ul, 0);
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test(lrintf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ul, 0);
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#else
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#error "Unsupported long size"
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#endif
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#if (LLONG_MAX == 0x7fffffffffffffffLL)
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ATF_REQUIRE_EQ(0, fesetround(FE_TONEAREST));
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test(llrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
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test(llrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
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test(llrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0);
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test(llrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0);
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test(llrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
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test(llrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
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test(llrint, -0x8000000000000000.0p0, (long long)-0x8000000000000000ull, 0);
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test(llrintf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ull, 0);
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#else
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#error "Unsupported long long size"
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#endif
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}
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ATF_TC_WITHOUT_HEAD(lrint);
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ATF_TC_BODY(lrint, tc)
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{
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run_tests();
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#ifdef __i386__
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fpsetprec(FP_PE);
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run_tests();
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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, lrint);
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return (atf_no_error());
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}
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