Check out the Castor C++ logic programming library - it makes extensive use of coroutines based on the principles in common with Duff's device. The Castor macr

Check out the Castor C++ logic programming library - it makes extensive use of coroutines based on the principles in common with Duff's device. The Castor macros co_begin, co_end, co_yield, and co_return contain the implementation code.