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#include <array>
#include <initializer_list>
#include <iostream>
using namespace std;
 
template<class Container>
class SequenceContainerWrapper
{
  Container cont;
public:
  using value_type = typename Container::value_type;
  using reference = typename Container::reference;
  using size_type = typename Container::size_type;
  SequenceContainerWrapper(initializer_list<value_type> init) : cont(init) {}
  reference operator[] (size_type n) {return cont[n];}
  // lots of other code that does nothing but wrapping
};
 
int main()
{
	SequenceContainerWrapper<array<int, 4>> arr({1,2,3,4});
	cout << arr[2] << '\n';
}

prog.cpp: In instantiation of 'SequenceContainerWrapper<Container>::SequenceContainerWrapper(std::initializer_list<typename Container::value_type>) [with Container = std::array<int, 4u>; typename Container::value_type = int]':
prog.cpp:21:55:   required from here
prog.cpp:14:74: error: no matching function for call to 'std::array<int, 4u>::array(std::initializer_list<int>&)'
   SequenceContainerWrapper(initializer_list<value_type> init) : cont(init) {}
                                                                          ^
In file included from prog.cpp:1:0:
/usr/include/c++/5/array:89:12: note: candidate: std::array<int, 4u>::array()
     struct array
            ^
/usr/include/c++/5/array:89:12: note:   candidate expects 0 arguments, 1 provided
/usr/include/c++/5/array:89:12: note: candidate: constexpr std::array<int, 4u>::array(const std::array<int, 4u>&)
/usr/include/c++/5/array:89:12: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'const std::array<int, 4u>&'
/usr/include/c++/5/array:89:12: note: candidate: constexpr std::array<int, 4u>::array(std::array<int, 4u>&&)
/usr/include/c++/5/array:89:12: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'std::array<int, 4u>&&'

Standard output is empty