gistfile1.hh

struct Foo {
        virtual int bar() = 0;
};

struct A : public Foo {
        int bar() { return 1; }
};

struct B : public Foo {
        int bar() { return 2; }
};

struct FooDescr {
        const char *name;
        FooDescr(const char *name) : name(name) {}
        virtual Foo* create() = 0;
};

template <class T>
struct FooDescrT : public FooDescr {
        FooDescrT(const char *name) : FooDescr(name) {}
        Foo* create() { return new T(); }
};

FooDescr* fd[] = { new FooDescrT<A>("Adfsdf"), new FooDescrT<B>("dfsdf") };