function template specialization via boost::enable_if<>

kyle.cpp

// http://stackoverflow.com/a/9442727/
#include <iostream>

#include <boost/type_traits/is_arithmetic.hpp>
#include <boost/type_traits/is_pointer.hpp>
#include <boost/utility/enable_if.hpp>

namespace {
  template <class T> typename boost::enable_if< boost::is_pointer<T>, T>::type
  GetFromStack() {
    std::cout << "pointer" << std::endl;
    return 0;
  }


  template <class T> typename boost::enable_if< boost::is_arithmetic<T>, T>::type
  GetFromStack() {
    std::cout << "arithmetic" << std::endl;
    return 0;
  }

  template <> short
  GetFromStack<short>() {
    std::cout << "short" << std::endl;
    return 0;
  }
}

int main() {
  GetFromStack<int>();   // -> arithmetic
  GetFromStack<short>(); // -> short
  GetFromStack<int*>();  // -> pointer
}