Static Members and Variables

Each template class or function generated from a template has its own copies of any static variables or members.

Each instantiation of a function template has it's own copy of any static variables defined within the scope of the function.

Static members are defined as follows.

////TTT.h

#include <iostream>

using namespace std;

template<typename T>

class X

{

public:

  static T s;

};

template<typename T> T X<T>::s = 0;

template<> int X<int>::s = 3;

template<> char* X<char*>::s = "Hello";

int main()

{

  X<int> xi;

  cout << "xi.s= " << xi.s <<endl;/// xi.s = 10

 

  X<char*> xc;

  cout << "xc.s= " << xc.s <<endl;/// xc.s = Hello

  return 0;

}