type traits example

gistfile1.cpp

#include <iostream>

using std::cout;
using std::endl;

template<typename T>
struct TypeTraits {
  static bool const IsPTR = false;
};

template<typename T>
struct TypeTraits<T*> {
  static bool const IsPTR = true;
};

int main() {
  cout << TypeTraits<int>::IsPTR << endl;
  cout << TypeTraits<int*>::IsPTR << endl;
  cout << TypeTraits<char>::IsPTR << endl;
  cout << TypeTraits<char**>::IsPTR << endl;
  return 0;
}