source-engine/public/tier1/utlpair.h

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2020-04-22 16:56:21 +00:00
//========= Copyright, Valve Corporation, All rights reserved. ================//
//
// std::pair style container; exists to work easily in our CUtlMap/CUtlHashMap classes
//
//=============================================================================//
#ifndef UTLPAIR_H
#define UTLPAIR_H
#ifdef _WIN32
#pragma once
#endif
// std::pair style container; exists to work easily in our CUtlMap/CUtlHashMap classes
template<typename T1, typename T2>
class CUtlPair
{
public:
CUtlPair() {}
CUtlPair( T1 t1, T2 t2 ) : first( t1 ), second( t2 ) {}
bool operator<( const CUtlPair<T1,T2> &rhs ) const {
if ( first != rhs.first )
return first < rhs.first;
return second < rhs.second;
}
bool operator==( const CUtlPair<T1,T2> &rhs ) const {
return first == rhs.first && second == rhs.second;
}
T1 first;
T2 second;
};
// utility to make a CUtlPair without having to specify template parameters
template<typename T1, typename T2>
inline CUtlPair<T1,T2> MakeUtlPair( T1 t1, T2 t2 )
{
return CUtlPair<T1,T2>(t1, t2);
}
//// HashItem() overload that works automatically with our hash containers
//template<typename T1, typename T2>
//inline uint32 HashItem( const CUtlPair<T1,T2> &item )
//{
// return HashItem( (uint64)HashItem( item.first ) + ((uint64)HashItem( item.second ) << 32) );
//}
#endif // UTLPAIR_H