Re: Proper Memory Management
Re: Proper Memory Management
- Subject: Re: Proper Memory Management
- From: Philip Vallone <email@hidden>
- Date: Tue, 19 Jan 2010 16:02:05 -0500
Awesome - Thanks!
On Jan 19, 2010, at 3:52 PM, Dave DeLong wrote:
> 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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