126 lines
4.6 KiB
C
126 lines
4.6 KiB
C
/*-
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* Copyright (c) 2005 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 lround(), lroundf(), llround(), and llroundf().
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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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#include "test-utils.h"
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#define IGNORE 0x12345
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/*
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* XXX The volatile here is to avoid gcc's bogus constant folding and work
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* around the lack of support for the FENV_ACCESS pragma.
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*/
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#define test(func, x, result, excepts) do { \
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volatile double _d = x; \
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ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT)); \
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volatile double _r = (func)(_d); \
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CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT, "for %s(%s)", \
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#func, #x); \
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if ((excepts & FE_INVALID) != 0) { \
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ATF_REQUIRE_EQ(result, IGNORE); \
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ATF_CHECK_EQ_MSG(FE_INVALID, fetestexcept(FE_INVALID), \
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"FE_INVALID not set correctly for %s(%s)", #func, #x); \
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} else { \
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ATF_REQUIRE_MSG(result != IGNORE, "Expected can't be IGNORE!"); \
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ATF_REQUIRE_EQ(result, (__STRING(func(_d)), _r)); \
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} \
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} while (0)
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#define testall(x, result, excepts) do { \
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test(lround, x, result, excepts); \
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test(lroundf, x, result, excepts); \
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test(llround, x, result, excepts); \
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test(llroundf, x, result, excepts); \
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} while (0)
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#pragma STDC FENV_ACCESS ON
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ATF_TC_WITHOUT_HEAD(main);
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ATF_TC_BODY(main, tc)
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{
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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, 1, FE_INEXACT);
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testall(-0.5, -1, 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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test(lround, 0x7fffffff.8p0, IGNORE, FE_INVALID);
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test(lround, -0x80000000.8p0, IGNORE, FE_INVALID);
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test(lround, 0x80000000.0p0, IGNORE, FE_INVALID);
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test(lround, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT);
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test(lround, -0x80000000.4p0, -0x80000000l, FE_INEXACT);
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test(lroundf, 0x80000000.0p0f, IGNORE, FE_INVALID);
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test(lroundf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
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#elif (LONG_MAX == 0x7fffffffffffffffll)
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test(lround, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
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test(lroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
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test(lround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0);
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test(lroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0);
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test(lround, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
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test(lroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
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test(lround, -0x8000000000000000.0p0, (long)-0x8000000000000000l, 0);
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test(lroundf, -0x8000000000000000.0p0f, (long)-0x8000000000000000l, 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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test(llround, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
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test(llroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
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test(llround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0);
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test(llroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0);
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test(llround, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
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test(llroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
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test(llround, -0x8000000000000000.0p0, (long long)-0x8000000000000000ll, 0);
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test(llroundf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ll, 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_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, main);
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return (atf_no_error());
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}
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