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Allow { NULL <op> T }to work

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This commit is contained in:
Phil Nash 2011-03-18 19:08:33 +00:00
parent ef611c65d9
commit 7dfd830a3a
3 changed files with 80 additions and 57 deletions
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9
Test/ConditionTests.cpp
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@ -224,7 +224,16 @@ TEST_CASE( "./succeeding/conditions/ptr", "Pointers can be compared to null" )
TestData data;
p = &data;
REQUIRE( p != NULL );
const TestData* cp = p;
REQUIRE( cp != NULL );
const TestData* const cpc = p;
REQUIRE( cpc != NULL );
// REQUIRE( NULL != p ); // gives warning, but should compile and run ok
}
// Not (!) tests

114
internal/catch_capture.hpp
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@ -395,65 +395,65 @@ private:
const T& m_lhs;
};
template<typename LhsT>
class PtrExpression
template<typename LhsT>
class PtrExpression
{
public:
///////////////////////////////////////////////////////////////////////////
PtrExpression
(
MutableResultInfo& result,
const LhsT* lhs
)
: m_result( result ),
m_lhs( lhs )
{}
///////////////////////////////////////////////////////////////////////////
template<typename RhsT>
MutableResultInfo& operator ==
(
const RhsT* rhs
)
{
public:
return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
PtrExpression
(
MutableResultInfo& result,
const LhsT* lhs
)
: m_result( result ),
m_lhs( lhs )
{}
///////////////////////////////////////////////////////////////////////////
template<typename RhsT>
MutableResultInfo& operator ==
(
const RhsT* rhs
)
{
return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
// This catches NULL
MutableResultInfo& operator ==
(
LhsT* rhs
)
{
return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
template<typename RhsT>
MutableResultInfo& operator !=
(
const RhsT* rhs
)
{
return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
// This catches NULL
MutableResultInfo& operator !=
(
LhsT* rhs
)
{
return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
}
private:
MutableResultInfo& m_result;
const LhsT* m_lhs;
};
///////////////////////////////////////////////////////////////////////////
// This catches NULL
MutableResultInfo& operator ==
(
LhsT* rhs
)
{
return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
template<typename RhsT>
MutableResultInfo& operator !=
(
const RhsT* rhs
)
{
return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
}
///////////////////////////////////////////////////////////////////////////
// This catches NULL
MutableResultInfo& operator !=
(
LhsT* rhs
)
{
return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
}
private:
MutableResultInfo& m_result;
const LhsT* m_lhs;
};
class ResultBuilder
{

14
internal/catch_evaluate.hpp
View File

@ -216,6 +216,20 @@ namespace Internal
{
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs, testLhsSign( lhs ) );
}
template<Operator Op, typename T>
bool compare( long lhs, const T* rhs )
{
return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( NULL ), rhs );
}
template<Operator Op, typename T>
bool compare( long lhs, T* rhs )
{
return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
}
} // end of namespace Internal
} // end of namespace Catch