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#include <initializer_list>
#include <array>
 
template<typename T, int N>
struct my_array
{
 
	constexpr my_array(const std::array<T, N> & l)
	{
	} 
};
 
int main(int argc, char ** argv)
{
	my_array<int, 2> a{{1, 2}};
	my_array<int, 1> b{{1, 2}};
 
	return 0;
}
 

prog.cpp: In function 'int main(int, char**)':
prog.cpp:16:27: error: no matching function for call to 'my_array<int, 1>::my_array(<brace-enclosed initializer list>)'
  my_array<int, 1> b{{1, 2}};
                           ^
prog.cpp:8:12: note: candidate: constexpr my_array<T, N>::my_array(const std::array<T, N>&) [with T = int; int N = 1]
  constexpr my_array(const std::array<T, N> & l)
            ^
prog.cpp:8:12: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const std::array<int, 1u>&'
prog.cpp:5:8: note: candidate: constexpr my_array<int, 1>::my_array(const my_array<int, 1>&)
 struct my_array
        ^
prog.cpp:5:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const my_array<int, 1>&'
prog.cpp:5:8: note: candidate: constexpr my_array<int, 1>::my_array(my_array<int, 1>&&)
prog.cpp:5:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'my_array<int, 1>&&'

Standard output is empty