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Revert "First cut of Evaluate refactoring to remove int specialisations, among other things"

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This reverts commit 39753558eb.
This commit is contained in:
Phil Nash
2017-02-06 22:37:23 +00:00
parent 23600609c0
commit 2b74613c54
5 changed files with 150 additions and 77 deletions
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168
include/internal/catch_evaluate.hpp
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@@ -46,86 +46,166 @@ namespace Internal {
// So the compare overloads can be operator agnostic we convey the operator as a template
// enum, which is used to specialise an Evaluator for doing the comparison.
template<Operator Op>
template<typename T1, typename T2, Operator Op>
class Evaluator{};
template<>
struct Evaluator<IsEqualTo> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs) {
return static_cast<bool>( lhs == rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsEqualTo> {
static bool evaluate( T1 const& lhs, T2 const& rhs) {
return bool( opCast( lhs ) == opCast( rhs ) );
}
};
template<>
struct Evaluator<IsNotEqualTo> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs ) {
return bool( lhs != rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsNotEqualTo> {
static bool evaluate( T1 const& lhs, T2 const& rhs ) {
return bool( opCast( lhs ) != opCast( rhs ) );
}
};
template<>
struct Evaluator<IsLessThan> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs ) {
return bool( lhs < rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsLessThan> {
static bool evaluate( T1 const& lhs, T2 const& rhs ) {
return bool( opCast( lhs ) < opCast( rhs ) );
}
};
template<>
struct Evaluator<IsGreaterThan> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs ) {
return bool( lhs > rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsGreaterThan> {
static bool evaluate( T1 const& lhs, T2 const& rhs ) {
return bool( opCast( lhs ) > opCast( rhs ) );
}
};
template<>
struct Evaluator<IsGreaterThanOrEqualTo> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs ) {
return bool( lhs >= rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsGreaterThanOrEqualTo> {
static bool evaluate( T1 const& lhs, T2 const& rhs ) {
return bool( opCast( lhs ) >= opCast( rhs ) );
}
};
template<>
struct Evaluator<IsLessThanOrEqualTo> {
template<typename T1, typename T2>
static bool evaluate( T1& lhs, T2& rhs ) {
return bool( lhs <= rhs );
template<typename T1, typename T2>
struct Evaluator<T1, T2, IsLessThanOrEqualTo> {
static bool evaluate( T1 const& lhs, T2 const& rhs ) {
return bool( opCast( lhs ) <= opCast( rhs ) );
}
};
template<Operator Op, typename T1, typename T2>
bool applyEvaluator( T1 const& lhs, T2 const& rhs ) {
return Evaluator<T1, T2, Op>::evaluate( lhs, rhs );
}
// This level of indirection allows us to specialise for integer types
// to avoid signed/ unsigned warnings
// "base" overload
template<Operator Op, typename T1, typename T2>
bool compare( T1 const& lhs, T2 const& rhs ) {
return Evaluator<Op>::evaluate( opCast( lhs ), opCast( rhs ) );
return Evaluator<T1, T2, Op>::evaluate( lhs, rhs );
}
// unsigned X to int
template<Operator Op> bool compare( unsigned int lhs, int rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
}
template<Operator Op> bool compare( unsigned long lhs, int rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
}
template<Operator Op> bool compare( unsigned char lhs, int rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
}
// unsigned X to long
template<Operator Op> bool compare( unsigned int lhs, long rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
}
template<Operator Op> bool compare( unsigned long lhs, long rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
}
template<Operator Op> bool compare( unsigned char lhs, long rhs ) {
return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
}
// int to unsigned X
template<Operator Op> bool compare( int lhs, unsigned int rhs ) {
return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
}
template<Operator Op> bool compare( int lhs, unsigned long rhs ) {
return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
}
template<Operator Op> bool compare( int lhs, unsigned char rhs ) {
return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
}
// long to unsigned X
template<Operator Op> bool compare( long lhs, unsigned int rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
template<Operator Op> bool compare( long lhs, unsigned long rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
template<Operator Op> bool compare( long lhs, unsigned char rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
// pointer to long (when comparing against NULL)
template<Operator Op, typename T> bool compare( long lhs, T* rhs ) {
return Evaluator<Op>::evaluate( opCast( reinterpret_cast<T*>( lhs ) ), opCast( rhs ) );
return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
}
template<Operator Op, typename T> bool compare( T* lhs, long rhs ) {
return Evaluator<Op>::evaluate( opCast( lhs ), opCast( reinterpret_cast<T*>( rhs ) ) );
return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
}
// pointer to int (when comparing against NULL)
template<Operator Op, typename T> bool compare( int lhs, T* rhs ) {
return Evaluator<Op>::evaluate( opCast( reinterpret_cast<T*>( lhs ) ), opCast( rhs ) );
return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
}
template<Operator Op, typename T> bool compare( T* lhs, int rhs ) {
return Evaluator<Op>::evaluate( opCast( lhs ), opCast( reinterpret_cast<T*>( rhs ) ) );
return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
}
// Needed?
#ifdef CATCH_CONFIG_CPP11_LONG_LONG
// long long to unsigned X
template<Operator Op> bool compare( long long lhs, unsigned int rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
template<Operator Op> bool compare( long long lhs, unsigned long rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
template<Operator Op> bool compare( long long lhs, unsigned long long rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
template<Operator Op> bool compare( long long lhs, unsigned char rhs ) {
return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
}
// unsigned long long to X
template<Operator Op> bool compare( unsigned long long lhs, int rhs ) {
return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
}
template<Operator Op> bool compare( unsigned long long lhs, long rhs ) {
return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
}
template<Operator Op> bool compare( unsigned long long lhs, long long rhs ) {
return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
}
template<Operator Op> bool compare( unsigned long long lhs, char rhs ) {
return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
}
// pointer to long long (when comparing against NULL)
template<Operator Op, typename T> bool compare( long long lhs, T* rhs ) {
return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
}
template<Operator Op, typename T> bool compare( T* lhs, long long rhs ) {
return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
}
#endif // CATCH_CONFIG_CPP11_LONG_LONG
#ifdef CATCH_CONFIG_CPP11_NULLPTR
// // pointer to nullptr_t (when comparing against nullptr)
// template<Operator Op, typename T> bool compare( std::nullptr_t, T* rhs ) {
// return Evaluator<T*, T*, Op>::evaluate( nullptr, rhs );
// }
// template<Operator Op, typename T> bool compare( T* lhs, std::nullptr_t ) {
// return Evaluator<T*, T*, Op>::evaluate( lhs, nullptr );
// }
// pointer to nullptr_t (when comparing against nullptr)
template<Operator Op, typename T> bool compare( std::nullptr_t, T* rhs ) {
return Evaluator<T*, T*, Op>::evaluate( nullptr, rhs );
}
template<Operator Op, typename T> bool compare( T* lhs, std::nullptr_t ) {
return Evaluator<T*, T*, Op>::evaluate( lhs, nullptr );
}
#endif // CATCH_CONFIG_CPP11_NULLPTR
} // end of namespace Internal