Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is an older version of Boost and was released in 2018. The current version is 1.90.0.

handler_type::type

handler_type::type

The handler type for the specific signature.

typedef conditional< is_same< CompletionToken, typename decay< CompletionToken >::type >::value, decay< CompletionToken >, handler_type< typename decay< CompletionToken >::type, Signature > >::type::type type;

Requirements

Header: boost/asio/handler_type.hpp

Convenience header: boost/asio.hpp