why I can not copy a c style array to std::array

I have this code:

 std::array<int,16> copyarray(int input[16])
{
    std::array<int, 16> result;
    std::copy(std::begin(input), std::end(input), std::begin(result));
    return result;
}

When I try to compile this code, O am getting this error:

'std::begin': no matching overloaded function found 

and similar error for the std::end

What is the problem and how I can fix it?