Article View: alt.comp.lang.learn.c-c++
Article #357Re: Arrays as static members
From: Greg Comeau
Date: Fri, 02 Jul 1999 00:00
Date: Fri, 02 Jul 1999 00:00
45 lines
2295 bytes
2295 bytes
In article <7lhobn$heq$1@ndsukns01.ndsuk.com> "Richard" <rchandler_mapson@nospam.ndsuk.com> writes:
>Magnus Hult wrote in message ...
>>Hello,
>>
>>I've got a problem (again). Take a look at this:
>>
>>class Object {
>> public:
>> int id;
>> static Object *pId[50];
>>};
>>
>>How to allocate memory for those 50 static members? I can't make a loop
>>outside a function, and it doesn't feel right to write "Object
>>*Object::pId[n] = 0;" 50 times.
>>
>
>
>You need to create the storage at the global scope level (although access
>will be restricted to the class scope) as follows in a cpp file ...
>
>Object* Object::pld[50] ;
>
>That creates the whole array. Then you can use the array from any function
>in your class (or in this case anywhere as it's public)
>
>Object::method()
>{
> for( int i=0 ; i<50; i++ )
> {
> pld[i] = 0 ;
> }
>}
>
>Hope this answers your question
Right, he could do this from any function in the class, but he probably
wants it to be done by a static member function.
- Greg
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f8d38,aecd7aaa6e14dde4 X-Google-Attributes: gidf8d38,public X-Google-Thread: 109fba,aecd7aaa6e14dde4 X-Google-Attributes: gid109fba,public X-Google-Thread: 114592,aecd7aaa6e14dde4 X-Google-Attributes: gid114592,public From: comeau@panix.com (Greg Comeau) Subject: Re: Arrays as static members Date: 1999/07/02 Message-ID: <7litpm$6i3$1@panix.com> X-Deja-AN: 496496048 References: <qQQe3.1601$nZ5.3455@nntpserver.swip.net> <7lhobn$heq$1@ndsukns01.ndsuk.com> X-Complaints-To: abuse@panix.com X-Trace: news.panix.com 930937463 12445 166.84.0.226 (2 Jul 1999 17:44:23 GMT) Organization: Comeau Computing; http://www.comeaucomputing.com Reply-To: comeau@comeaucomputing.com NNTP-Posting-Date: 2 Jul 1999 17:44:23 GMT Newsgroups: alt.comp.lang.learn.c-c++,borland.public.cpp.language,comp.lang.c++ X-Newsposter: trn 4.0-test55 (26 Feb 97)