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default_completion_token

Traits type used to determine the default completion token type associated with a type (such as an executor).

template<
    typename T>
struct default_completion_token
Types

Name

Description

type

If T has a nested type default_completion_token_type, T::default_completion_token_type. Otherwise the typedef type is boost::asio::deferred_t.

A program may specialise this traits type if the T template parameter in the specialisation is a user-defined type.

Specialisations of this trait may provide a nested typedef type, which is a default-constructible completion token type.

If not otherwise specialised, the default completion token type is deferred_t.

Requirements

Header: boost/asio/default_completion_token.hpp

Convenience header: boost/asio.hpp


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