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b0581433a7
fix: remove executable flag and change back to 100644 (was 100755) Signed-off-by: Roger Meier <r.meier@siemens.com>
153 lines
2.8 KiB
C++
153 lines
2.8 KiB
C++
//
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// FPETest.cpp
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//
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// $Id: //poco/1.4/Foundation/testsuite/src/FPETest.cpp#1 $
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "FPETest.h"
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#include "CppUnit/TestCaller.h"
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#include "CppUnit/TestSuite.h"
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#include "Poco/FPEnvironment.h"
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using Poco::FPE;
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FPETest::FPETest(const std::string& name): CppUnit::TestCase(name)
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{
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}
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FPETest::~FPETest()
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{
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}
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void FPETest::testClassify()
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{
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{
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float a = 0.0f;
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float b = 0.0f;
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float nan = a/b;
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float inf = 1.0f/b;
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assert (FPE::isNaN(nan));
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assert (!FPE::isNaN(a));
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assert (FPE::isInfinite(inf));
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assert (!FPE::isInfinite(a));
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}
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{
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double a = 0;
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double b = 0;
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double nan = a/b;
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double inf = 1.0/b;
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assert (FPE::isNaN(nan));
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assert (!FPE::isNaN(a));
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assert (FPE::isInfinite(inf));
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assert (!FPE::isInfinite(a));
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}
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}
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#if defined(__HP_aCC)
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#pragma OPTIMIZE OFF
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#elif defined(_MSC_VER)
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#pragma optimize("", off)
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#elif defined(__APPLE__) && defined(POCO_COMPILER_GCC)
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#pragma GCC optimization_level 0
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#endif
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double mult(double a, double b)
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{
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return a*b;
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}
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double div(double a, double b)
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{
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return a/b;
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}
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void FPETest::testFlags()
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{
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FPE::clearFlags();
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// some compilers are intelligent enough to optimize the calculations below away.
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// unfortunately this leads to a failing test, so we have to trick out the
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// compiler's optimizer a little bit by doing something with the results.
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volatile double a = 10;
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volatile double b = 0;
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volatile double c = div(a, b);
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assert (FPE::isFlag(FPE::FP_DIVIDE_BY_ZERO));
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assert (FPE::isInfinite(c));
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FPE::clearFlags();
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a = 1.23456789e210;
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b = 9.87654321e210;
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c = mult(a, b);
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assert (FPE::isFlag(FPE::FP_OVERFLOW));
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assertEqualDelta(c, c, 0);
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FPE::clearFlags();
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a = 1.23456789e-99;
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b = 9.87654321e210;
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c = div(a, b);
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assert (FPE::isFlag(FPE::FP_UNDERFLOW));
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assertEqualDelta(c, c, 0);
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}
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#if defined(__HP_aCC)
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#pragma OPTIMIZE ON
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#elif defined(_MSC_VER)
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#pragma optimize("", on)
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#elif defined(__APPLE__) && defined(POCO_COMPILER_GCC)
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#pragma GCC optimization_level reset
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#endif
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void FPETest::testRound()
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{
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#if !defined(__osf__) && !defined(__VMS)
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FPE::setRoundingMode(FPE::FP_ROUND_TONEAREST);
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assert (FPE::getRoundingMode() == FPE::FP_ROUND_TONEAREST);
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{
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FPE env(FPE::FP_ROUND_TOWARDZERO);
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assert (FPE::getRoundingMode() == FPE::FP_ROUND_TOWARDZERO);
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}
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assert (FPE::getRoundingMode() == FPE::FP_ROUND_TONEAREST);
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#endif
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}
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void FPETest::setUp()
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{
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}
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void FPETest::tearDown()
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{
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}
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CppUnit::Test* FPETest::suite()
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{
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CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("FPETest");
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CppUnit_addTest(pSuite, FPETest, testClassify);
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CppUnit_addTest(pSuite, FPETest, testFlags);
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CppUnit_addTest(pSuite, FPETest, testRound);
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return pSuite;
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}
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