### execution::can_connect

A type trait that determines whether a `connect` expression is well-formed.

    template<
        typename S,
        typename R>
    struct can_connect

Class template `can_connect` is a trait that is derived from `true_type` if the expression `execution::connect(std::declval<S>(), std::declval<R>())` is well formed; otherwise `false_type`.

##### Requirements

Header: `asio/execution/connect.hpp`

Convenience header: `asio/execution.hpp`