[Prev] Thread [Next] |
[Prev] Date [Next]
NSString Retain Count of 2147483647
Wed Jun 24 08:01:24 2009
I know you're not supposed to use retain counts when debugging memory
issues, but I have found it very (VERY) useful at times. While looking
at retain counts of NSStrings I have found an oddity that I think I
understand, but would like confirmation if possible.
When I use NSScanners to chop strings up, whenever I pull a one-
character string out of a scanner that string has a retain count of
2147483647 (2**32 - 1). My guess is that there are pre-allocated, one-
character strings for all (most?) characters that are given this
maximum possible value of a retain count, the digital equivalent of
infinity. Then these one-character strings can be released pretty much
to one's heart's content but never deallocated unless there is an
incredible bug, in which case I'm guessing that another such one-
character string would be allocated to replace it.
Can anyone confirm this suspicion?
Tom Wetmore, curious Xcoder
Do not post admin requests to the list. They will be ignored.
Xcode-users mailing list ([EMAIL PROTECTED])
Help/Unsubscribe/Update your Subscription:
This email sent to [EMAIL PROTECTED]