#include <locale>
#include <iterator>
#include <type_traits>
int main()
{
static_assert((std::is_base_of<std::locale::facet, std::num_get<char> >::value), "");
static_assert((std::is_base_of<std::locale::facet, std::num_get<wchar_t> >::value), "");
static_assert((std::is_same<std::num_get<char>::char_type, char>::value), "");
static_assert((std::is_same<std::num_get<wchar_t>::char_type, wchar_t>::value), "");
static_assert((std::is_same<std::num_get<char>::iter_type, std::istreambuf_iterator<char> >::value), "");
static_assert((std::is_same<std::num_get<wchar_t>::iter_type, std::istreambuf_iterator<wchar_t> >::value), "");
}