🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.std.c++
Article #3910

Re: Const class member

#3910
From: David Vandevoorde
Date: Wed, 03 Apr 1996 17:22
38 lines
2003 bytes
>>>>> "TH" == Torsten Hoff <thoff@symantec.com> writes:
[...]
TH> If you *really* want compile-time initialized constants, and can live
TH> with something that has essentially the same properties as an integer,
TH> use class-scope enums. If you need several compile-time constants with
TH> the same value, you can use multiple untagged enums:

TH> class AnyClass
TH> {
TH>     enum {FOO = 1, BAR = 1}; // multiple enums with same value; 
                                 //    doesn't work!
TH>     enum {FOO = 1};          // OK
TH>     enum {BAR = 1};          // OK
TH> }
[...]

Alternatively:

	struct AnyStruct {
	    static bool const Yes = true;
	    static char const A = 'B';
	};

(Somewhere:
	bool const AnyStruct::Yes;
	char const AnyStruct::A;
)

which works for integral types (if you compiler is reasonably up-to-date).

	Daveed
---
[ comp.std.c++ is moderated.  To submit articles: Try just posting with your 
                newsreader.  If that fails, use mailto:std-c++@ncar.ucar.edu
  comp.std.c++ FAQ: http://reality.sgi.com/austern/std-c++/faq.html
  Moderation policy: http://reality.sgi.com/austern/std-c++/policy.html
  Comments? mailto:std-c++-request@ncar.ucar.edu 
]
Technical Details
Message-ID: <xsolokd1gum.fsf@avs.cs.rpi.edu>
Path: arc1-ca.pugleaf.net!fido.asd.sgi.com!austern
References: <4jgpqa$t09@nntp.interaccess.com> <4jq60l$6pp@symiserver2.symantec.com>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!fido.asd.sgi.com!austern
From: vandevod@cs.rpi.edu (David Vandevoorde)
Newsgroups: comp.std.c++
Subject: Re: Const class member
Date: 03 Apr 1996 09:22:55 PST
Organization: RPI Computer Science
Approved: austern@isolde.mti.sgi.com
Message-ID: <xsolokd1gum.fsf@avs.cs.rpi.edu>
References: <4jgpqa$t09@nntp.interaccess.com>
 <4jq60l$6pp@symiserver2.symantec.com>
NNTP-Posting-Host: isolde.mti.sgi.com
X-Original-Date: 03 Apr 1996 10:12:49 -0500
In-Reply-To: thoff@symantec.com's message of 02 Apr 96 13:30:31 GMT
X-Newsreader: Gnus v5.1
X-Auth: PGPMoose V1.1 PGP comp.std.c++
 iQBVAwUBMWKz8Ey4NqrwXLNJAQGmvgH/awUOAD0g/s1q5E/GJ6u7WqOaW/3msCkf
 /EX+WEKScnKz2g5XUa9MgUt30upNa68A9KGfqPEFIid4srlPKbMp4Q==
 =IwNo
Originator: austern@isolde.mti.sgi.com