Re: Get MD5 without crashing
Re: Get MD5 without crashing
- Subject: Re: Get MD5 without crashing
- From: Andy Lee <email@hidden>
- Date: Tue, 4 Nov 2008 12:16:22 -0500
On Nov 4, 2008, at 11:41 AM, Mr. Gecko wrote:
now that I added a auto release pool it crashes later on. but it
doesn't have to do with MD5 anymore it has to do with the hexdump of
SSCrypto.
[...]
- (NSString *)md5:(NSString *)MD5 {
SSCrypto *crypto = [[SSCrypto alloc] init];
[crypto setClearTextWithString:MD5];
return [[[crypto autorelease] digest:@"MD5"] hexval];
}
Is it possible either you need to retain the return value from this
method, or you're over-releasing it? Have you tried turning
NSZombieEnabled on?
You mentioned not being familiar with release and autorelease.
(Actually you said you couldn't find details on when to use them,
which I find surprising.) Have you read the document Jonathan del
Strother recommended?
http://developer.apple.com/documentation/Cocoa/Conceptual/MemoryMgmt/Tasks/MemoryManagementRules.html
Do not try to guess your way around retain and release -- you'll just
be wasting a lot of your own time. It's not that hard once you get
the hang of it.
--Andy
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