C++ Template clarification

Its a explicit template specialization.
There are two types of template specialization

1. Explicit

template<> void sort<char*>(Array<char*>&);

2. Partial

template<class T1, class T2, int I>
  class A             { };             

We can specialize this for the case when T2 is a T1*:

template<class T, int I>
class A<T, T*, I>   { };

Or for the case when T1 is any pointer:

template<class T1, class T2, int I>
class A<T1*, T2, I> { };

Or for the case when T1 is int and T2 is any pointer and I is 5:

template<class T>
class A<int, T*, 5> { };

Or for the case when T2 is any pointer:

template<class T1, class T2, int I>
class A<T1, T2*, I> { };

Declarations 2 to 5 declare partial specializations of the primary template.

[edit]Fixed so that all the angle brackets show[/edit]
[edit:rjm]added <pre> tags[/edit]