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Re: static array initialization
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From: |
Richard Frith-Macdonald |
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Subject: |
Re: static array initialization |
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Date: |
Mon, 3 Sep 2001 20:25:39 +0000 |
On Monday, September 3, 2001, at 07:22 PM, Aurelien wrote:
Hi,
Another beginner's question (c'mon they're easy to answer ;-):
I want to have class (static) fields in the form of an array. Hence I
declare them as static just above the @interface declaration:
#import "ClassFactory.h"
@class Advertisement, MimeMediaType, AdvertisementFactory
static Class advRequiredConstructors [][];
static NSObject advRequiredStaticMethods [][];
static int getAdvertisementTypeMethod = 0;
@interface AdvertisementFactory: ClassFactory
{
....
}
....
To initialize these variables, I declare a class method named:
+ doStatic;
To have my class initialized, I'll have to call the doStatic method on
each class that has a such method.
My question comes in three parts:
1) Isn't there a standard way to do this (e.g. using the + alloc
method) ?
The +initialize method is called automatically before any other method
of the class
is called, so you just need to implement +initialise for your class.
2) in the body of this method, how do I initialize an array of an array
of NSObjects. Do I have to use malloc ?
Effectively ... though NSZoneMalloc() is preferred.
3) Will I have to manually free the allocated pointers ?
thx in advance,
Yes but ... when?
Probably, these arrays should persist until your program exits ... so
most likely
there's no point destroying them.