Pair.h

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#ifndef MiscLib__PAIR_HEADER__
#define MiscLib__PAIR_HEADER__
#include <utility>
 
namespace MiscLib
{
    template <class FirstT, class SecondT>
    struct Pair
    {
        typedef FirstT FirstType;
        typedef SecondT SecondType;
 
        Pair()
        {
        }
 
        Pair(FirstType& f, SecondType& s) : first(f), second(s)
        {
        }
 
        Pair(const std::pair<FirstType, SecondType>& p) : first(p.first), second(p.second)
        {
        }
 
        Pair<FirstType, SecondType>&
        operator=(const std::pair<FirstType, SecondType>& p)
        {
            first = p.first;
            second = p.second;
        }
 
        FirstType first;
        SecondType second;
    };
 
    template <class FirstT>
    struct Pair<FirstT, FirstT>
    {
        typedef FirstT FirstType;
        typedef FirstType SecondType;
        FirstType first, second;
 
        Pair()
        {
        }
 
        Pair(FirstType& f, SecondType& s) : first(f), second(s)
        {
        }
 
        Pair(std::pair<FirstType, SecondType>& p) : first(p.first), second(p.second)
        {
        }
 
        Pair<FirstType, SecondType>&
        operator=(const std::pair<FirstType, SecondType>& p)
        {
            first = p.first;
            second = p.second;
        }
 
        operator FirstType*()
        {
            return &first;
        }
 
        operator const FirstType*() const
        {
            return &first;
        }
    };
 
    template <class FirstT, class SecondT>
    Pair<FirstT, SecondT>
    MakePair(FirstT& first, SecondT& second)
    {
        return Pair<FirstT, SecondT>(first, second);
    }
}; // namespace MiscLib
 
#endif