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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
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Name |
Description |
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If T has a nested type default_completion_token_type, T::default_completion_token_type. Otherwise the typedef type is not defined. |
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.
Header: asio/async_result.hpp
Convenience header: asio.hpp