c++ - Is there any difference between "T" and "const T" in template parameter?

Question

Is there any difference between following 2 syntax:

template<int N> struct A;         // (1)

and

template<const int N> struct A;   // (2)

Any general guideline for when to use each syntax ?

Answer 1

No.

§14.1 [temp.param] p5

[...] The top-level cv-qualifiers on the template-parameter are ignored when determining its type.