Modelib: Fichier source de Expr.h

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# Expr.h

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    00001 /*
    00002     Copyright (c) 2005, Quentin Lequy and Romain Gaucher
    00003     All rights reserved.
    00004
    00005     Redistribution and use in source and binary forms, with or
    00006     without modification, are permitted provided that the following
    00007     conditions are met:
    00008
    00009         * Redistributions of source code must retain the above copyright
    00010           notice, this list of conditions and the following disclaimer.
    00011
    00012         * Redistributions in binary form must reproduce the above copyright
    00013           notice, this list of conditions and the following disclaimer in the
    00014           documentation and/or other materials provided with the distribution.
    00015
    00016         * Neither the name of Quentin Lequy or Romain Gaucher nor the names
    00017           of its contributors may be used to endorse or promote products
    00018           derived from this software without specific prior written permission.
    00019
    00020     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    00021     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    00022     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    00023     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    00024     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    00025     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    00026     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
    00027     AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00028     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    00029     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00030 */
    00031
    00032 #ifndef __EXPR_H_
    00033 #define __EXPR_H_
    00034
    00035 #include <list>
    00036 #include <iostream>
    00037
    00038 #include "ExprNode.h"
    00039
    00040 namespace Modelib {
    00041
    00042 class Num;
    00043 class NumArray;
    00044 class NumVar;
    00045 class NumVarArray;
    00046 class LagrangianParam;
    00047
    00048
    00050
    00062 class Expr
    00063 {
    00064   std::list<ExprNode> nodeList;
    00065   protected:
    00070     Expr & operator+=(const ExprNode & _node)
    00071     {
    00072       nodeList.push_back(_node);
    00073       isSimplified = false;
    00074       return *this;
    00075     }
    00076
    00077     void Simplify(bool AvecLagrangianParam = false,bool SansConstantes = false);
    00078
    00079     bool isSimplified;
    00080     bool isParametric;
    00081     bool sansConstantes;
    00082
    00083     friend class Model;
    00084   public:
    00085     Expr() {}
    00086     Expr( const NumVar & numVar);
    00087     Expr( float );
    00088     Expr( double );
    00089     Expr( int );
    00090     Expr( unsigned );
    00091     Expr( const Num & num);
    00092     Expr( const Num & num, const NumVar & numVar);
    00093     Expr( const Num & num, const NumVar & numVar, const LagrangianParam & mult);
    00095     Expr( const Expr & _expr) { *this = _expr; }
    00096
    00098     Expr & operator= ( const Expr & _expr)
    00099     {
    00100         if( this != &_expr )
    00101         {
    00102             nodeList = _expr.nodeList;
    00103             isSimplified =  _expr.isSimplified;
    00104             isParametric = _expr.isParametric;
    00105             sansConstantes = _expr.sansConstantes;
    00106         }
    00107         return *this;
    00108     }
    00109
    00110     Expr & operator+=( const Expr & );
    00111     Expr & operator-=( const Expr & );
    00112
    00113     Expr & operator*=(const Num &);
    00114
    00115     Expr & ASS( const Num & num, const NumVar & numVar );
    00116     Expr & ASS( const Num & num, const NumVar & numVar, const LagrangianParam & mult );
    00117
    00121     unsigned Size() { return nodeList.size(); }
    00122     bool IsNum();
    00123     bool IsVar();
    00124     float GetConstant(bool avecLagrangianParam = true) const;
    00125     float Evalue(bool avecLagrangianParam = true) const;
    00126
    00127     friend std::ostream & operator<< ( std::ostream & flux, const Expr & expr);
    00128     friend std::ostream& operator<<(std::ostream& o,const Model& m);
    00129
    00130     ~Expr() {}
    00131 };
    00132
    00133 //Operateurs de constructions d'expressions
    00134 Expr operator*( const Num & , const NumVar &);
    00135 Expr operator*( const NumVar & , const Num &);
    00136 Expr operator*( const NumVarArray & , const NumArray &);
    00137 Expr operator*( const NumArray & , const NumVarArray &);
    00138 Expr operator*( const Expr &, const Num & );
    00139 Expr operator*( const Num & , const Expr &);
    00140 Expr operator+( const Expr &, const Expr &);
    00141 Expr operator-( const Expr &, const Expr &);
    00142
    00143
    00144 std::ostream & operator<< (std::ostream & flux,const Expr & expr);
    00145
    00146 Expr Sum(const NumVarArray & );
    00147
    00148 }
    00149
    00150 #endif