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103 lines (87 loc) · 3.53 KB
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/*
* Copyright (c) 2015, Michael Feathers, James Grenning, Bas Vodde
* and Arnd R. Strube. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE EARLIER MENTIONED AUTHORS ``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 <copyright holder> 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 "CppUTest/TestHarness.h"
#include "CppUTestExt/IEEE754ExceptionsPlugin.h"
#ifdef CPPUTEST_HAVE_FENV
extern "C" {
#include <fenv.h>
}
#define IEEE754_CHECK_CLEAR(test, result, flag) ieee754Check(test, result, flag, #flag)
bool IEEE754ExceptionsPlugin::inexactDisabled_ = true;
IEEE754ExceptionsPlugin::IEEE754ExceptionsPlugin(const SimpleString& name)
: TestPlugin(name)
{
}
void IEEE754ExceptionsPlugin::preTestAction(UtestShell&, TestResult&)
{
CHECK(!feclearexcept(FE_ALL_EXCEPT));
}
void IEEE754ExceptionsPlugin::postTestAction(UtestShell& test, TestResult& result)
{
if(!test.hasFailed()) {
IEEE754_CHECK_CLEAR(test, result, FE_DIVBYZERO);
IEEE754_CHECK_CLEAR(test, result, FE_OVERFLOW);
IEEE754_CHECK_CLEAR(test, result, FE_UNDERFLOW);
IEEE754_CHECK_CLEAR(test, result, FE_INVALID); // LCOV_EXCL_LINE (not all platforms support this)
IEEE754_CHECK_CLEAR(test, result, FE_INEXACT);
}
}
void IEEE754ExceptionsPlugin::disableInexact()
{
inexactDisabled_ = true;
}
void IEEE754ExceptionsPlugin::enableInexact()
{
inexactDisabled_ = false;
}
bool IEEE754ExceptionsPlugin::checkIeee754OverflowExceptionFlag()
{
return fetestexcept(FE_OVERFLOW) != 0;
}
bool IEEE754ExceptionsPlugin::checkIeee754UnderflowExceptionFlag()
{
return fetestexcept(FE_UNDERFLOW) != 0;
}
bool IEEE754ExceptionsPlugin::checkIeee754InexactExceptionFlag()
{
return fetestexcept(FE_INEXACT) != 0;
}
bool IEEE754ExceptionsPlugin::checkIeee754DivByZeroExceptionFlag()
{
return fetestexcept(FE_DIVBYZERO) != 0;
}
void IEEE754ExceptionsPlugin::ieee754Check(UtestShell& test, TestResult& result, int flag, const char* text)
{
result.countCheck();
if(inexactDisabled_) CHECK(!feclearexcept(FE_INEXACT));
if(fetestexcept(flag)) {
CHECK(!feclearexcept(FE_ALL_EXCEPT));
CheckFailure failure(&test, __FILE__, __LINE__, "IEEE754_CHECK_CLEAR", text);
result.addFailure(failure);
}
}
#endif