MattPD

// Boost.Hana solution
// issue: http://baptiste-wicht.com/posts/2015/07/simulate-static_if-with-c11c14.html
// docs w/ explanation: http://ldionne.com/hana/#tutorial-introspection-is_valid

#include <iostream>
#include <string>

#include <boost/hana.hpp>

auto has_pop_back = boost::hana::is_valid([](auto && obj) -> decltype(obj.pop_back()) { });

MattPD

#include <iostream>
using std::cout;

int main()
{
  cout << "Hello! \n";
  return 0;
}