On Jul 1, 2009, at 9:26 AM, David Blanton wrote:
I have searched and find nothing that helps with the subject line
warning.
in .h file
NSMutableArray *m_sources;
in .mm file
if(m_sources != nil) [m_sources release];
Unnecessary, sending messages to nil does nothing so checking for nil
is just a waste of time here.
m_sources = [volumes stringsByAppendingPaths:[defaultManager
directoryContentsAtPath:volumes]];
You declared m_sources as an NSMutableArray, but your assigning it an
NSArray here. Since an NSMutableArray is a subclass of NSArray and not
the other way around, that is why you are getting the error.
[m_source retain];
note if I do not release / retain m_sources the program crashes with
exec bad access
Correct. If you don't understand why, I recommend reviewing the Cocoa
Memory Management Guidelines at <http://developer.apple.com/documentation/Cocoa/Conceptual/MemoryMgmt/MemoryMgmt.html
>
--
David Duncan
Apple DTS Animation and Printing
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