static_member_override.cpp

#include <iostream>

template <typename C>
struct Base
{
    static const int id;
    static constexpr const char* const name = 0;

    static void out(){ std::cout << "name: " << C::name << std::endl; }
};

struct DerivedA : public Base<DerivedA>
{
    static const int id = 1;
    static constexpr const char* const name = "DerivedA";
};

struct DerivedB : public Base<DerivedB>
{
    static const int id = 2;
    static constexpr const char* const name = "DerivedB";
};

int main( int argc, char** argv )
{
    DerivedA da;
    DerivedB db;

    std::cout << da.name << " " << db.name << std::endl;
    std::cout << da.id << " " << db.id << std::endl;
    std::cout << sizeof( da ) << " " << sizeof( db )<< std::endl;

    da.out();
    db.out();

    std::cout << "That's all!" << std::endl;

    return 0;
}