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/*
* FeatureStats.cpp
* mert - Minimum Error Rate Training
*
* Created by Nicola Bertoldi on 13/05/08.
*
*/
#include "Util.h"
#include "ScoreStats.h"
#include <fstream>
#include <iostream>
using namespace std;
namespace {
const int kAvailableSize = 8;
} // namespace
namespace MosesTuning
{
ScoreStats::ScoreStats()
: m_available_size(kAvailableSize), m_entries(0),
m_array(new ScoreStatsType[m_available_size]) {}
ScoreStats::ScoreStats(const size_t size)
: m_available_size(size), m_entries(size),
m_array(new ScoreStatsType[m_available_size])
{
memset(m_array, 0, GetArraySizeWithBytes());
}
ScoreStats::~ScoreStats()
{
if (m_array) {
delete [] m_array;
m_array = NULL;
}
}
void ScoreStats::Copy(const ScoreStats &stats)
{
m_available_size = stats.available();
m_entries = stats.size();
m_array = new ScoreStatsType[m_available_size];
memcpy(m_array, stats.getArray(), GetArraySizeWithBytes());
}
ScoreStats::ScoreStats(const ScoreStats &stats)
{
Copy(stats);
}
ScoreStats& ScoreStats::operator=(const ScoreStats &stats)
{
delete [] m_array;
Copy(stats);
return *this;
}
void ScoreStats::expand()
{
m_available_size *= 2;
scorestats_t buf = new ScoreStatsType[m_available_size];
memcpy(buf, m_array, GetArraySizeWithBytes());
delete [] m_array;
m_array = buf;
}
void ScoreStats::add(ScoreStatsType v)
{
if (isfull()) expand();
m_array[m_entries++]=v;
}
void ScoreStats::set(const string& str)
{
reset();
vector<string> out;
Tokenize(str.c_str(), ' ', &out);
for (vector<string>::const_iterator it = out.begin();
it != out.end(); ++it) {
add(ConvertStringToScoreStatsType(*it));
}
}
void ScoreStats::loadbin(istream* is)
{
is->read(reinterpret_cast<char*>(m_array),
static_cast<streamsize>(GetArraySizeWithBytes()));
}
void ScoreStats::loadtxt(istream* is)
{
string line;
getline(*is, line);
set(line);
}
void ScoreStats::loadtxt(const string &file)
{
ifstream ifs(file.c_str(), ios::in); // matches a stream with a file. Opens the file
if (!ifs) {
cerr << "Failed to open " << file << endl;
exit(1);
}
istream* is = &ifs;
loadtxt(is);
}
void ScoreStats::savetxt(const string &file)
{
ofstream ofs(file.c_str(), ios::out); // matches a stream with a file. Opens the file
ostream* os = &ofs;
savetxt(os);
}
void ScoreStats::savetxt(ostream* os)
{
*os << *this;
}
void ScoreStats::savetxt() {
savetxt(&cout);
}
void ScoreStats::savebin(ostream* os)
{
os->write(reinterpret_cast<char*>(m_array),
static_cast<streamsize>(GetArraySizeWithBytes()));
}
ostream& operator<<(ostream& o, const ScoreStats& e)
{
for (size_t i=0; i< e.size(); i++)
o << e.get(i) << " ";
return o;
}
bool operator==(const ScoreStats& s1, const ScoreStats& s2) {
size_t size = s1.size();
if (size != s2.size())
return false;
for (size_t k=0; k < size; k++) {
if (s1.get(k) != s2.get(k))
return false;
}
return true;
}
}
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