On Mar 3, 2009, at 11:47, Nick Zitzmann wrote:
// build NSMenu by HAND
NSMenu *menu = [[[NSMenu alloc] initWithTitle:@"abc"] autorelease];
if (menu != NULL)
You don't have to worry about this. There are a few classes that may
return nil (not NULL) if initialization fails, such as NSPipe.
NSMenu is not one of these classes, and most likely never will be.
This is somewhat OT, but I'm not sure if I follow you here. By design (http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_4_section_4.html#/
/apple_ref/doc/uid/TP30001163-CH22-SW13), *any* class's initializer
may return nil to indicate initialization failure. I don't know of any
documented API contract that says [NSMenu initWithTitle:] never fails,
so checking the returned value seems prudent.
In addition, I've always assumed that 'alloc' could potentially return
nil. In that case, the result of the initialization would be nil too,
and so needs to be checked. (Is that wrong? Is an exception thrown if
there is no memory available? If so, is that documented somewhere?)
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