has_tuple_element Concept Reference

Concept definition

template<class T, std::size_t N>
concept has_tuple_element = 
  requires(T t) {
    typename std::tuple_element_t<N, std::remove_const_t<T>>;
    { get<N>(t) } -> std::convertible_to<const std::tuple_element_t<N, T>&>;
  }