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From: shap@delrey.sgi.com (Jonathan Shapiro)
Newsgroups: comp.object,comp.lang.c++
Subject: Re: Continuations
Message-ID: <1713@odin.SGI.COM>
Date: 1 Dec 89 04:26:26 GMT
References: <2664@bingvaxu.cc.binghamton.edu> <9624@pyr.gatech.EDU> <1623@odin.SGI.COM> <1989Nov28.183816.15252@odi.com> <9964@june.cs.washington.edu> <1989Nov29.225826.19483@odi.com> <10008@june.cs.washington.edu>
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Organization: Silicon Graphics, Inc., Mountain View, CA
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In article <10008@june.cs.washington.edu> peterd@june.cs.washington.edu (Peter C. Damron) writes:
>4. C and C++ have first class functions.  Functions can be passed as
>   parameters, returned as function values, and assigned to variables.

>Hope this helps to clear up any mis-understandings,
>Peter.

Actually, Peter, it creates one.  C and C++ do not have fist class
functions.  Functions cannot be passed as values.  Function pointers
can, whcih is a somewhat different thing.  To be first class, it must
be possible to treat functions as *values* rather than as *labels*.
For example, the following is a syntax error:

int foo(int);
int bar(int);

foo = bar

If functions were first class, this would be altogether legal.

Otherwise, your posting was correct.


Jonathan Shapiro
Silicon Graphics, Inc.


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