A type trait that determines whether a query expression will not throw.

template<
    typename T,
    typename Property>
struct is_nothrow_query

Class template is_nothrow_query is a trait that is derived from true_type if the expression asio::query(std::declval<T>(), std::declval<Property>()) is noexcept; otherwise false_type.

Requirements

Header: asio/query.hpp

Convenience header: asio.hpp