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+/*
+
+EGYPT Toolkit for Statistical Machine Translation
+Written by Yaser Al-Onaizan, Jan Curin, Michael Jahr, Kevin Knight, John Lafferty, Dan Melamed, David Purdy, Franz Och, Noah Smith, and David Yarowsky.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
+USA.
+
+*/
+#ifndef _defs_h
+#define _defs_h 1
+#include <string>
+#include <math.h>
+#include <limits.h>
+
+const int TRANSFER_SIMPLE=1;
+const int TRANSFER=0;
+
+const unsigned int MAX_SENTENCE_LENGTH_ALLOWED=101;
+const int TRAIN_BUFFER_SIZE= 50000;
+//#ifdef WORDINDEX_WITH_4_BYTE
+typedef unsigned int WordIndex;
+const unsigned int MAX_VOCAB_SIZE=UINT_MAX;
+typedef unsigned int PositionIndex;
+//#else
+//typedef unsigned short WordIndex;
+//const unsigned int MAX_VOCAB_SIZE=USHRT_MAX;
+//typedef unsigned short PositionIndex;
+//#endif
+extern WordIndex MAX_FERTILITY;
+
+const int MAX_W=457979;
+extern double LAMBDA; // Lambda that is used to scale cross_entropy factor
+
+typedef float PROB ;
+typedef float COUNT ;
+ 
+class LogProb {
+ private:
+  double x ;
+ public:
+  LogProb():x(0){}
+  LogProb(double y):x(y){}
+  LogProb(float y):x(y){}
+  LogProb(int y):x(y){}
+  LogProb(WordIndex y):x(y){}
+  operator double() const {return x;}
+  LogProb operator *= (double y) { x *= y ; return *this;}
+  LogProb operator *= (LogProb y) { x *= y.x ; return *this;}
+  LogProb operator /= (double y) { x /= y ; return *this;}
+  LogProb operator /= (LogProb y) { x /= y.x ; return *this;}
+  LogProb operator += (double y) { x += y ; return *this;}
+  LogProb operator += (LogProb y) { x += y.x ; return *this;}
+};
+
+const int PARLEV_ITER=1;
+const int PARLEV_OPTHEUR=2;
+const int PARLEV_OUTPUT=3;
+const int PARLEV_SMOOTH=4;
+const int PARLEV_EM=5;
+const int PARLEV_MODELS=6;
+const int PARLEV_SPECIAL=7;
+const int PARLEV_INPUT=8;
+
+#endif
+