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Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++)
From: |
Björn Gohla |
Subject: |
Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++) |
Date: |
Tue, 20 Nov 2001 16:22:38 +0100 |
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On Tuesday 20 November 2001 09:43, Bjoern Giesler wrote:
> adding my .02 Euro...
btw, is gnustep euro-ready 8-0 ?
> Am Dienstag, 20. November 2001 01:33 schrieb Björn Gohla:
> > 5. how about operators?
>
> Please, no. IMHO, you don't gain much with this, but it makes debugging a
> nightmare. I'm in the process of debugging a program which makes use of
> operator overloading in C++. I don't want operators. No. :-/
i did not write overloding ;) , they could be defined simply as per class
aliases for messages, so you can write
[a + b]
instead of
[a stringByAppendingString: b]
that would make debugging no more difficult than using verbose messages.
to keep their impact limited they could be made uninheritable, so to pass on
an operator you would copy the operator-to-message mapping explicitly, this
would reflect the view that an operator is specific to only one class. doing
it this way could discourage the definition of superfluous and ill-defined
operators.
> > 6. a mechanism to transparently access c types as objects (very handy
> > if you want to store them in a container)
>
> Hmm. How would this look?
as suggested in connection with abbreviated prop lists
int a = 1;
NSMutableArray foo;
<....>
[foo addObject: @a];
[foo addObject: @2];
the same way it is done with string literals there would be classes for c
types, say GSCInt in the example, that would differ from NSValue classes in
that they would only store references. so this does what one expects
int a = 0;
id b;
[@a increment];
b = @a;
printf("%i",a);
printf("%i",[b rawValue]);
prints 1 twice. perhaps provisions in connections with the retain count have
to be made for the case when a goes out of scope while @a is stored in a
global context.
just a thought anyway 8-)
- --
- --------------------
"god not only rolls the dice, he cheats too"
pub 1024D/834F4976 2001-01-07 Björn Gohla (Wissenschaftler, Weltbürger)
<b.gohla@gmx.de>
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sub 1024g/29571FE2 2001-01-07
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- Re: PROPOSAL: Objective-C++, (continued)
- Re: PROPOSAL: Objective-C++, Helge Hess, 2001/11/20
- Re: PROPOSAL: Objective-C++, Stefan Böhringer, 2001/11/20
- Re: PROPOSAL: Objective-C++, Ovidiu Predescu, 2001/11/19
- Re: PROPOSAL: Objective-C++, Björn Gohla, 2001/11/19
- ObjC additions (Was: Re: PROPOSAL: Objective-C++), Stefan Urbanek, 2001/11/19
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Ovidiu Predescu, 2001/11/19
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Ziemowit Laski, 2001/11/19
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Helge Hess, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Björn Gohla, 2001/11/19
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Bjoern Giesler, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++),
Björn Gohla <=
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Philippe C.D. Robert, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Philippe C.D. Robert, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Markus Grabert, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Markus Grabert, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Pascal Bourguignon, 2001/11/19
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Dan Pascu, 2001/11/20
- Re: ObjC additions (Was: Re: PROPOSAL: Objective-C++), Balazs Pataki, 2001/11/20
- Re: PROPOSAL: Objective-C++, Stan Shebs, 2001/11/19
- Re: PROPOSAL: Objective-C++, Ovidiu Predescu, 2001/11/19
Re: PROPOSAL: Objective-C++, dewar, 2001/11/19