RTTI.02.rar_visual c

// RTTI.cpp - a demonstration of RTTI in C++ #include <typeinfo.h> #include <iostream.h> #include <string.h> class graphicImage { protected: char name[80]; public: graphicImage() { strcpy(name,"graphicImage"); } virtual void display() { cout << "Display a generic image." << endl; } char* getName() { return name; } }; //---------------------------------------------------------------- class GIFimage : public graphicImage { public: GIFimage() { strcpy(name,"GIFimage"); } void display() { cout << "Display a GIF file." << endl; } }; class PICTimage : public graphicImage { public: PICTimage() { strcpy(name,"PICTimage"); } void display() { cout << "Display a PICT file." << endl; } }; //---------------------------------------------------------------- void processFile(graphicImage *type) { if (typeid(GIFimage) == typeid(*type)) { ((GIFimage *)type)->display(); } else if (typeid(PICTimage) == typeid(*type)) { ((PICTimage *)type)->display(); } else cout << "Unknown type! " << (typeid(*type)).name() << endl; } void main() { graphicImage *gImage = new GIFimage(); graphicImage *pImage = new PICTimage(); processFile(gImage); processFile(pImage); }