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/*

 * Created: 26-01-2016

 * Modified: Wed 27 Jan 2016 17:59:23 CET

 * Author: Jonas R. Glesaaen (jonas@glesaaen.com)

 */

#include<iostream>

#include<boost/type_index.hpp>

using boost::typeindex::type_id_with_cvr;

//A function that demonstrates that the array size of a C-array

//is encoded into the type, and that this is accessible information

template <typename T, std::size_t N>

constexpr std::size_t array_size(T (&)[N]) noexcept

{

  return N;

}

//This function demonstrates some caveats when template deducing

//C-arrays. Only array references retain information about array size

//(does not compile for a call-by-value)

template <typename T>

void print_arr(const T& arr)

{

  std::cout << "[" << array_size(arr) << "] ";

  for (auto i : arr)

    std::cout << i << ", ";

  std::cout << "\n";

  //Uncomment to print out the deduced types of T and arr

  //std::cout << "T: "

    //<< type_id_with_cvr<T>().pretty_name() << ",\t"

    //<< "x: "

    //<< type_id_with_cvr<decltype(arr)>().pretty_name() << "\n";

}

int main(int, char**)

{

  int arr[] = {3, 1, 4, 1, 5, 9};

  print_arr(arr);

}