//file 1
class dxfReader {
private:
    double originx, originy, originz;
    double upx, upy, upz;
    double deltax, deltay, deltaz;
    double minx, miny, minz;
    double maxx, maxy, maxz;
    list<vector<double>> vertices;
    list<int> *currentPolygon;
    list<list<int> *> polygonList;
public:
    dxfReader();

    void processComments(ifstream&);
    void processHeaderSection(ifstream&);
    void processTablesSection(ifstream&);
    void processEntitiesSection(ifstream&);
    int  getTripled(ifstream&, double&, double&, double&);
    int processHeaderTag(ifstream&);
    void processDXFFile(char *filename);
    void dxfReader::addVertex(double x, double y, double z);
    void dxfReader::beginIndexedPolygon();
    void dxfReader::addIndexedPolygonVertex(int i);
    void dxfReader::endIndexedPolygon();
};

//file2
int main (int argCount, char *argValues[]) {
    char myfilename[] = "ANGELFISH.DXF";
    dxfReader* myReader = new dxfReader();

    myReader.processDXFFile(myfilename); //error "expression must have class type"
}