...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Spawn a new thread of execution.
template< typename Executor, typename F, typename CompletionToken, typename = typename enable_if<is_executor<Executor>::value>::type> auto co_spawn( const Executor & ex, F && f, CompletionToken && token);