The Boost.Coroutine library contains a family of class templates that wrap function objects in coroutines. Coroutines are a generalization of subroutines that can return and be reentered more than once without causing the destruction of automatic objects.

Coroutines are useful whenever it is necessary to keep state across a function call, a job usually reserved to stateful function objects.

This library has been developed as part of the Google Summer of Code 2006, with Boost as the Mentoring association. It has not been subject to a formal review, and thus is not part of the Boost library collection. Boost.Coroutine is only the tentative name