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Re: Proper Memory Management
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Re: Proper Memory Management


  • Subject: Re: Proper Memory Management
  • From: Dave DeLong <email@hidden>
  • Date: Tue, 19 Jan 2010 13:52:15 -0700

None of them.

According to the memory management rules, you're only responsible for objects you create via an "alloc", "new", or "copy" method, which none of these are.  All of these objects are autoreleased.

Dave

On Jan 19, 2010, at 1:50 PM, Philip Vallone wrote:

>
> I am I trying to learn proper memory management and have question: In the following example, which objects am I responsible to release?
>
>
> - (void) viewDidLoad{
>
> 	NSString *tempStr = nil;
> 	NSString *filepath = [[NSBundle mainBundle] pathForResource:@"filename" ofType:@"xml"];
>
> 	NSData *xmlData = [NSData dataWithContentsOfFile:filepath];
>
> 	NSMutableString *xqueryStr = [NSMutableString stringWithFormat:@"/data/title/@number"];
>
> 	NSArray *resultNodes = PerformXMLXPathQuery(xmlData, xqueryStr);
>
> 	NSEnumerator *e = [resultNodes objectEnumerator];
>
> 	id object;
>
> 	while (object = [e nextObject]) {
>
> 		for (NSString *key in object){
>
> 			tempStr = [[object objectForKey:key] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
>
> 			if ([tempStr isEqualToString:@"number"] ) {
>
> 			}else {
>
> 					// do something here
>
> 			}
> 		}
>
> 	}
>
> }
>
> Thanks,
>
> Phil
>
>
>
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  • Follow-Ups:
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      • From: Philip Vallone <email@hidden>
    • Re: Proper Memory Management
      • From: Dave Carrigan <email@hidden>
References: 
 >Proper Memory Management (From: Philip Vallone <email@hidden>)

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