...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
A function object that adapts a completion token to specify that the completion handler arguments should be combined into a single tuple argument.
constexpr partial_as_tuple as_tuple;
May also be used directly as a completion token, in which case it adapts
the asynchronous operation's default completion token (or deferred
if no default is available).
Header: boost/asio/as_tuple.hpp
Convenience header: boost/asio.hpp