AdjazenzMatrix.cpp

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#include "AdjazenzMatrix.h"


AdjazenzMatrix::AdjazenzMatrix(char* path)
{
    char line[256];
    VertexCount = 0;

    std::ifstream infile (path, std::ios::in);
  
    if (!infile)
    {
        std::cout << "File kann nicht gelesen werden" << std::endl;
        return;
    }
    
    //-----------get Vertexcout for initialisation---------------
    while (infile.getline (line, 256))
    {
        int vertex1 = -1, vertex2 = -1;

        std::stringstream tmp1;
        char* token = strtok(line, " ");
        tmp1 << token;
        if((tmp1 >> vertex1).fail())
        {
            std::cout << "Fehlerhaftes File" << std::endl;
            return;
        }
        if (VertexCount < vertex1)
        {
            VertexCount = vertex1;
        }

        std::stringstream tmp2;
        token = strtok(NULL, " ");
        tmp2 << token;
        if((tmp2 >> vertex2).fail())
        {
            std::cout << "Fehlerhaftes File" << std::endl;
            return;
        }
        if (VertexCount < vertex2)
        {
            VertexCount = vertex2;
        }
        std::cout<<vertex1<<";"<<vertex2<<std::endl;
      // mach was mit der zeile
      //cout << line << endl;
    }
    std::cout<<VertexCount<<std::endl;
    //------------------------------------------------

    //----------initialize matrix--------------------
    matrix = new double*[VertexCount];
    for(int i = 0; i < VertexCount; ++i)
    {
        matrix[i] = new double[VertexCount];
        for(int j = 0; j< VertexCount; ++j)
        {
            matrix[i][j] = 0.0;
        }
    }
    //----------------------------------------------

    //----------create the matrix-------------------
    infile.clear();
    infile.seekg(0, std::ios::beg);
    while (infile.getline (line, 256))
    {
        int i = -1, j = -1;

        std::stringstream tmp1;
        char* token = strtok(line, " ");
        tmp1 << token;
        tmp1 >> i;

        std::stringstream tmp2;
        token = strtok(NULL, " ");
        tmp2 << token;
        tmp2 >> j;
    
        matrix[i-1][j-1] = 1.0;
        matrix[j-1][i-1] = 1.0;
      // mach was mit der zeile
      //cout << line << endl;
    }
    //-------------------------------------------------
    infile.close();
    for(int i = 0; i < VertexCount; ++i)
    {
        for(int j = 0; j< VertexCount; ++j)
        {
            std::cout<<matrix[i][j];
        }
        std::cout<<std::endl;
    }
}


AdjazenzMatrix::~AdjazenzMatrix(void)
{
    for(int i = 0; i < VertexCount; ++i)
    {
        delete[] matrix[i]; matrix[i] = nullptr;
    }
    delete[] matrix, matrix = nullptr;
}