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 2013. The current version is 1.89.0.

windows::stream_handle_service::implementation_type

windows::stream_handle_service::implementation_type

The type of a stream handle implementation.

typedef implementation_defined implementation_type;