In Objective-C all objects can be released from memory using release function ?
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In Objective-C all objects can be released from memory using release function ?
Objects are not necessarily cleared from memory when you call release. Also, it might be necessary to call special functions for Core Foundation objects (such as CGColorRef).
In general, you have to call one release or autorelease for every alloc, retain or copy call you make on an object.
For more details, see Apple’s memory management guide.