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/*
* This file is part of the source code of the software program
* Vampire. It is protected by applicable
* copyright laws.
*
* This source code is distributed under the licence found here
* https://vprover.github.io/license.html
* and in the source directory
*/
/**
* @file InverseLookup.hpp
* Defines class InverseLookup.
*/
#ifndef __InverseLookup__
#define __InverseLookup__
#include "DHMap.hpp"
#include "Lib/Allocator.hpp"
namespace Lib {
template<typename T>
class InverseLookup
{
private:
//private and undefined operator= and copy constructor to avoid implicitly generated ones
InverseLookup(const InverseLookup&);
InverseLookup& operator=(const InverseLookup&);
public:
USE_ALLOCATOR(InverseLookup<T>);
template<typename Arr>
InverseLookup(Arr arr, size_t size)
{
for(size_t i=0;i<size;i++) {
ALWAYS(_data.insert(arr[i],i));
}
}
template<typename Arr>
void update(Arr arr)
{
size_t size=_data.size();
for(size_t i=0;i<size;i++) {
NEVER(_data.set(arr[i],i));
}
}
size_t get(T* val)
{
return _data.get(val);
}
private:
DHMap<T*,size_t> _data;
};
};
#endif /* __InverseLookup__ */