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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#pragma once
#include <iostream>
#include <set>
#include <vector>
#include <algorithm>
#include <iterator>
#include "TypeDef.h"
#include "Util.h"
class FactorTypeSet
{
friend std::ostream& operator<<(std::ostream&, const FactorTypeSet&);
protected:
unsigned int m_bit;
inline FactorTypeSet(unsigned int bit)
{
m_bit = bit;
}
public:
inline FactorTypeSet()
:m_bit(0)
{
}
FactorTypeSet (const std::vector<FactorType> &factors);
inline void Add(const FactorType &factorType)
{
unsigned int value = static_cast<unsigned int>(factorType);
m_bit |= (1 << value);
}
inline FactorTypeSet Intersect(const FactorTypeSet &other) const
{
unsigned int bit = m_bit & other.m_bit;
return FactorTypeSet(bit);;
}
inline void Merge(const FactorTypeSet &other)
{
m_bit |= other.m_bit;
}
void Set(const FactorTypeSet &other)
{
m_bit = 0;
Merge(other);
}
inline bool Contains(FactorType factorType) const
{
unsigned int value = static_cast<unsigned int>(factorType);
return Contains(value);
}
inline bool Contains(size_t factorType) const
{
unsigned int value = static_cast<unsigned int>(factorType);
return (m_bit & (1 << value)) > 0;
}
TO_STRING;
};
// friend
inline
std::ostream& operator<<(std::ostream& out, const FactorTypeSet& factorTypeSet)
{
out << "(";
for (size_t currFactor = 0 ; currFactor < NUM_FACTORS ; currFactor++)
{
if (factorTypeSet.Contains(currFactor))
{
out << "," << currFactor;
}
}
out << ") ";
return out;
}
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