include/pelib/Scalar.hpp

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/*
 Copyright 2015 Nicolas Melot

 This file is part of Pelib.

 Pelib 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 3 of the License, or
 (at your option) any later version.

 Pelib 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 Pelib. If not, see <http://www.gnu.org/licenses/>.
*/


#include <iostream>
#include <cstdlib>
#include <fstream>
#include <sstream>
#include <string>
#include <boost/regex.hpp>
#include <iomanip>

#include <pelib/AlgebraData.hpp>
#include <pelib/PelibException.hpp>

#ifndef PELIB_SCALAR
#define PELIB_SCALAR

namespace pelib
{
        template <class Value>
        class Scalar: public AlgebraData
        {
                public:
                        Scalar(const std::string name, const Value value, precision prec = leave) : AlgebraData(name, prec)
                        {
                                this->value = value;
                        }

                        Scalar(const Scalar<Value>* scalar) : AlgebraData(scalar->getName(), scalar->getPrecision())
                        {
                                // Do nothing
                        }

                        virtual
                        Scalar*
                        clone() const
                        {
                                return new Scalar<Value>(name, value, prec);
                        }

                        virtual
                        const Value&
                        getValue() const
                        {
                                return value;
                        }
                        
                        void    
                        merge(const AlgebraData* ptr)
                        {
                                // Only allow merging if both this and ptr are of same name and type
                                if(ptr->getName().compare(this->getName()) == 0 && std::string(typeid(*ptr).name()).compare(typeid(Scalar<Value>).name()) == 0)
                                {
                                        Scalar<Value> *scalar = (Scalar<Value>*)ptr;
                                        this->value = scalar->getValue();
                                }
                                else
                                {
                                        throw PelibException(std::string("Cannot merge data \"") + ptr->getName() + "\" with " + typeid(Value).name() + " scalar of name \"" + this->getName() + "\".");
                                }
                        }
                protected:
                        Value value;
                private:                
        };
}

#endif