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/*
* ScoreStats.h
* mert - Minimum Error Rate Training
*
* Created by Nicola Bertoldi on 13/05/08.
*
*/
#ifndef MERT_SCORE_STATS_H_
#define MERT_SCORE_STATS_H_
#include <vector>
#include <iosfwd>
#include <cstdlib>
#include <cstring>
#include "Types.h"
namespace MosesTuning
{
class ScoreStats
{
private:
std::size_t m_available_size;
std::size_t m_entries;
// TODO: Use smart pointer for exceptional-safety.
scorestats_t m_array;
public:
ScoreStats();
explicit ScoreStats(const std::size_t size);
~ScoreStats();
// We intentionally allow copying.
ScoreStats(const ScoreStats &stats);
ScoreStats& operator=(const ScoreStats &stats);
void Copy(const ScoreStats &stats);
bool isfull() const {
return (m_entries < m_available_size) ? 0 : 1;
}
void expand();
void add(ScoreStatsType v);
void clear() {
std::memset((void*)m_array, 0, GetArraySizeWithBytes());
}
void reset() {
m_entries = 0;
clear();
}
ScoreStatsType get(std::size_t i) {
return m_array[i];
}
ScoreStatsType get(std::size_t i) const {
return m_array[i];
}
scorestats_t getArray() const {
return m_array;
}
void set(const std::string& str);
// Much more efficient than the above.
void set(const std::vector<ScoreStatsType>& stats) {
reset();
for (std::size_t i = 0; i < stats.size(); ++i) {
add(stats[i]);
}
}
std::size_t bytes() const {
return GetArraySizeWithBytes();
}
std::size_t GetArraySizeWithBytes() const {
return m_entries * sizeof(ScoreStatsType);
}
std::size_t size() const {
return m_entries;
}
std::size_t available() const {
return m_available_size;
}
void savetxt(const std::string &file);
void savetxt(std::ostream* os);
void savebin(std::ostream* os);
void savetxt();
void loadtxt(const std::string &file);
void loadtxt(std::istream* is);
void loadbin(std::istream* is);
/**
* Write the whole object to a stream.
*/
friend std::ostream& operator<<(std::ostream& o, const ScoreStats& e);
};
bool operator==(const ScoreStats& s1, const ScoreStats& s2);
}
#endif // MERT_SCORE_STATS_H_
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