class Foo
{
public:
    Foo(int j) { i=new int[j]; }
    ~Foo() { delete i; }
private:
    int* i;
};
class Bar: Foo
{
public:
    Bar(int j) { i=new char[j]; }
    ~Bar() { delete i; }
private:
    char* i;
};
void main()
{
    Foo* f=new Foo(100);
    Foo* b=new Bar(200);
    *f=*b;
    delete f;
    delete b;
}

class CodeGenerator
{
public:
    enum Lang {JAVA, C_PLUS_PLUS, PHP};
    CodeGenerator(Lang language) { _language=language; }
    std::string generateCode()
    {
        switch(_language) {
        case JAVA:        //return generated java code
        case C_PLUS_PLUS: //return generated C++ code
        case PHP:         //return generated PHP code
        }
        throw new std::logic_error("Bad language");
    }
    std::string someCodeRelatedThing() // used in generateCode()
    {
        switch(_language) {
        case JAVA:        //return generated java-related stuff
        case C_PLUS_PLUS: //return generated C++-related stuff
        case PHP:         //return generated PHP-related stuff
        }
        throw new std::logic_error("Bad language");
    }

private:
    Lang _language;
}