Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wasatch!cs.utexas.edu!uunet!wuarchive!texbell!sugar!ficc!peter From: peter@ficc.uu.net (Peter da Silva) Newsgroups: comp.lang.c Subject: Re: Coroutines in C Message-ID: <5710@ficc.uu.net> Date: 16 Aug 89 13:36:27 GMT References: <5663@ficc.uu.net> <14281@haddock.ima.isc.com> <563@augean.OZ> <10097@csli.Stanford.EDU> Organization: Xenix Support, FICC Lines: 23 Generators in 'C'... I guess you could use coroutines to implement something like Icon generators, but Smalltalk generators might be easier. There's more to Icon generators than the function itself... how do you do !every write(factor(192))!? Generators in Smalltalk are implemented differently than in Icon. You set up methods for getting the first and next element of the sequence, and use instance variables (if necessary) to maintain state. This is more conventional, and wouldn't require coroutines. gen = NewGenerator(Factor); x = gen->First(192); while(x) { Write(x); x = gen->Next(); } This is a job (removes glasses, or is that classes?) for C++? -- Peter da Silva, Xenix Support, Ferranti International Controls Corporation. Business: peter@ficc.uu.net, +1 713 274 5180. | "The sentence I am now Personal: peter@sugar.hackercorp.com. `-_-' | writing is the sentence Quote: Have you hugged your wolf today? 'U` | you are now reading"