Path: utzoo!attcan!uunet!husc6!ukma!mailrus!cornell!uw-beaver!ssc-vax!lee
From: lee@ssc-vax.UUCP (Lee Carver)
Newsgroups: comp.lang.c++
Subject: Re: co-routine concept in C++?
Summary: aren't objects co-routines?
Message-ID: <1191@ssc-bee.ssc-vax.UUCP>
Date: 13 Oct 88 23:25:54 GMT
References: <649@laura.UUCP>
Organization: Boeing Aerospace Corp., Seattle WA
Lines: 22

In article <649@laura.UUCP>, bause@exunido.uucp (Falko Bause) writes:
> In an article from Bjarne Stroustrup 'What is "Object-Oriented Programming"?'
> 'For example, the C++ standard library provides a co-routine class.'
> 
> The problem is that I'm not able to find it.
> Where is it? What are the names of the special procedures (I can't found
> resume and detach in any ".h"-file)?
> 
> Does Stroustrup really means, that there is a possibilty to implement the
> co-routine concept in C++, which is implemented e.g. in SIMULA?

Strange, I had just been thinking on this issue, and maybe I can
muddy the waters some more :-).  It seems to me that an object, by
it self, of its very nature, constitues a co-routine.

Consider a program with communications between the objects.  Each
call on an object cause the called object to continue from its saved
(or suspended) state.  It seems that this is a complete
implementation of co-routines.

Am I missing some (archane :-) definition of "co-routine"ness.  Hope
this gets the discussion off to a good start.