What is the meaning of template<> with empty angle brackets in C++?

Question

template<>
class A{
//some class data
};

I have seen this kind of code many times. what is the use of template<> in the ab

Answer 1

Doesn't look right. Now, you might have instead written:

template<>
class A {
// some stuff
};

... which would be a template specialisation for type foo.