/Users/kmartin/Documents/files/code/cpp/OScpp/COIN-OS/OS/src/OSCommonInterfaces/OSExpressionTree.cpp

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//#define DEBUG
#include "OSExpressionTree.h"
#include<vector>

using std::cout; 
using std::endl;

OSExpressionTree::OSExpressionTree():
        m_treeRoot( NULL),
        mapVarIdx( NULL),
        m_bIndexMapGenerated( false),
        bCppADMustReTape( false),
        bDestroyNlNodes( true){
}//end OSExpressionTree

 
OSExpressionTree::~OSExpressionTree(){
        #ifdef DEBUG  
        cout << "Inside the OSExpressionTree Destructor" << endl;
        #endif
        if( bDestroyNlNodes == true){
                if(m_treeRoot != NULL) delete m_treeRoot;       
        }
        if(mapVarIdx != NULL){
                delete mapVarIdx;
                mapVarIdx = NULL;
        }
}//end ~OSExpressionTree 


std::vector<OSnLNode*> OSExpressionTree::getPostfixFromExpressionTree(){
        return m_treeRoot->getPostfixFromExpressionTree();
}//getPostfixFromExpressionTree


std::vector<OSnLNode*> OSExpressionTree::getPrefixFromExpressionTree(){
        return m_treeRoot->getPrefixFromExpressionTree();
}//getPrefixFromExpressionTree



double OSExpressionTree::calculateFunction( double *x, bool new_x){
        //calculateFunctionCppAD( x, functionEvaluated);
        if( new_x == false){
                return m_dTreeRootValue; 
        }
        else{
                m_dTreeRootValue = m_treeRoot->calculateFunction( x);
                return  m_dTreeRootValue;
        }
}//calculateFunction

std::map<int, int> *OSExpressionTree::getVariableIndiciesMap(){
        if( m_bIndexMapGenerated == true) return mapVarIdx;
        mapVarIdx = new std::map<int, int>();
        m_treeRoot->getVariableIndexMap( mapVarIdx);
        //std::cout << "SIZE OF MAP =  "  << (*mapVarIdx).size() << std::endl;
        int kount = 0;
        for(m_mPosVarIdx = (*mapVarIdx).begin(); m_mPosVarIdx != (*mapVarIdx).end(); ++m_mPosVarIdx){
                m_mPosVarIdx->second = kount++;
                //std::cout <<  "POSITION FIRST =  "  << m_mPosVarIdx->first ;
                //std::cout <<  "    POSITION SECOND = "  << m_mPosVarIdx->second << std::endl;
        }
        m_bIndexMapGenerated = true;
        return mapVarIdx;
}//getVariableIndicies

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