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#ifndef moses_HypothesisStack_h
#define moses_HypothesisStack_h
#include <vector>
#include <set>
#include "Hypothesis.h"
#include "WordsBitmap.h"
namespace Moses
{
class Manager;
class HypothesisStack
{
protected:
typedef std::set< Hypothesis*, HypothesisRecombinationOrderer > _HCType;
_HCType m_hypos; /**< contains hypotheses */
Manager& m_manager;
public:
HypothesisStack(Manager& manager): m_manager(manager) {}
typedef _HCType::iterator iterator;
typedef _HCType::const_iterator const_iterator;
//! iterators
const_iterator begin() const {
return m_hypos.begin();
}
const_iterator end() const {
return m_hypos.end();
}
size_t size() const {
return m_hypos.size();
}
virtual inline float GetWorstScore() const {
return -std::numeric_limits<float>::infinity();
};
virtual float GetWorstScoreForBitmap( WordsBitmapID ) {
return -std::numeric_limits<float>::infinity();
};
virtual float GetWorstScoreForBitmap( WordsBitmap ) {
return -std::numeric_limits<float>::infinity();
};
virtual ~HypothesisStack();
virtual bool AddPrune(Hypothesis *hypothesis) = 0;
virtual const Hypothesis *GetBestHypothesis() const = 0;
virtual std::vector<const Hypothesis*> GetSortedList() const = 0;
//! remove hypothesis pointed to by iterator but don't delete the object
virtual void Detach(const HypothesisStack::iterator &iter);
/** destroy Hypothesis pointed to by iterator (object pool version) */
virtual void Remove(const HypothesisStack::iterator &iter);
};
}
#endif
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