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// **********************************************************************
//
// Copyright (c) 2003-present ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_COMPARABLE_H
#define ICE_COMPARABLE_H
#include <functional>
namespace Ice
{
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the contents are equal, false otherwise.
*/
template<typename T, typename U>
inline bool targetEqualTo(const T& lhs, const U& rhs)
{
if(lhs && rhs)
{
return *lhs == *rhs;
}
else
{
return !lhs && !rhs;
}
}
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares less than the right-hand side, false otherwise.
*/
template<typename T, typename U>
inline bool targetLess(const T& lhs, const U& rhs)
{
if(lhs && rhs)
{
return *lhs < *rhs;
}
else
{
return !lhs && rhs;
}
}
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares greater than the right-hand side, false otherwise.
*/
template<typename T, typename U>
inline bool targetGreater(const T& lhs, const U& rhs)
{
return targetLess(rhs, lhs);
}
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares less than or equal to the right-hand side, false otherwise.
*/
template<typename T, typename U>
inline bool targetLessEqual(const T& lhs, const U& rhs)
{
return !targetGreater(lhs, rhs);
}
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares greater than or equal to the right-hand side, false otherwise.
*/
template<typename T, typename U>
inline bool targetGreaterEqual(const T& lhs, const U& rhs)
{
return !targetLess(lhs, rhs);
}
/**
* Compares the contents of two smart pointers.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the contents are not equal, false otherwise.
*/
template<typename T, typename U>
inline bool targetNotEqualTo(const T& lhs, const U& rhs)
{
return !targetEqualTo(lhs, rhs);
}
#ifdef ICE_CPP11_MAPPING
/**
* Functor class that compares the contents of two smart pointers of the given type using the given comparator.
* \headerfile Ice/Ice.h
*/
template<typename T, template<typename> class Compare>
struct TargetCompare
{
/**
* Executes the functor to compare the contents of two smart pointers.
* @return True if the contents satisfy the given comparator, false otherwise.
*/
bool operator()(const T& lhs, const T& rhs) const
{
if(lhs && rhs)
{
return Compare<typename T::element_type>()(*lhs, *rhs);
}
else
{
return Compare<bool>()(static_cast<const bool>(lhs), static_cast<const bool>(rhs));
}
}
};
//
// Relational operators for generated structs and classes
//
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares less than the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator<(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() < rhs.ice_tuple();
}
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares less than or equal to the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator<=(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() <= rhs.ice_tuple();
}
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares greater than the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator>(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() > rhs.ice_tuple();
}
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares greater than or equal to the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator>=(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() >= rhs.ice_tuple();
}
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side compares equal to the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator==(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() == rhs.ice_tuple();
}
/**
* Relational operator for generated structs and classes.
* @param lhs The left-hand side.
* @param rhs The right-hand side.
* @return True if the left-hand side is not equal to the right-hand side, false otherwise.
*/
template<class C, typename = std::enable_if<std::is_member_function_pointer<decltype(&C::ice_tuple)>::value>>
bool operator!=(const C& lhs, const C& rhs)
{
return lhs.ice_tuple() != rhs.ice_tuple();
}
#endif
}
#endif
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