...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Attaches the current thread to the pool.
void attach();
This function attaches the current thread to the pool so that it may be used for executing submitted function objects. Blocks the calling thread until the pool is stopped or joined and has no outstanding work.