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Article View: comp.std.c++
Article #3501

Re: Generic Object Callbacks

#3501
From: brian (b.c.) white
Date: Mon, 26 Feb 1996 16:07
30 lines
1991 bytes
In article <pgpmoose.199602221531.14635@isolde.mti.sgi.com>,
ian (i.) willmott <willmott@bnr.ca> wrote:

>In an article entitled "Q: Generic Callbacks -- Object->*func(...)"
>(reference <4fti32$p3p@bcarh8ab.bnr.ca>), bcwhite@bnr.ca asks

>"Does the C++ standard allow for a generic callback to be specified?
>Basically, I'd like to be able to pass an arbitrary object and
>function of that object to be called at some later time."

>What is needed is the ability to use member functions as callbacks
>without any constraint on the type of the object they are invoked on.
>This is possible in C++ only by using various implementation-dependent
>hacks to escape the type system, because the language does not provide
>any way to express such a construct.

Of course, what we're really trying to with all this is to pass _code_
(along with its context) as an object.

                                        Brian
                                 ( bcwhite@bnr.ca )

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Path: arc1-ca.pugleaf.net!engnews1.Eng.Sun.COM!taumet!clamage
From: "brian (b.c.) white" <bcwhite@bnr.ca>
Newsgroups: comp.std.c++
Subject: Re: Generic Object Callbacks
Date: 26 Feb 1996 16:07:58 GMT
Organization: Bell-Northern Research Ltd.
Approved: clamage@eng.sun.com (comp.std.c++)
Message-ID: <4gsi2p$905@bcarh8ab.bnr.ca>
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