Re: What is the life of the c string returned by NSString's UTF8String method?
Re: What is the life of the c string returned by NSString's UTF8String method?
- Subject: Re: What is the life of the c string returned by NSString's UTF8String method?
- From: Nick Zitzmann <email@hidden>
- Date: Fri, 18 Sep 2009 12:20:21 -0600
On Sep 18, 2009, at 12:04 PM, Stuart Malin wrote:
I am under the impression that the reference returned by NSString's
UTF8String method is valid for the life of the NSString instance
which provided the reference (and further, that the memory of the
referenced C string is freed when the NSString is released). Is this
correct?
The only way to be sure is to run Instruments with the object
allocations tool and look for allocations equal to the size of the
string. But I'm pretty sure that draining the autorelease pool frees
the C strings, or at least, they do get cleaned up at some point.
In any case, if you want them to stick around, then you need to memcpy
() them into a data buffer that is controlled by your application.
Nick Zitzmann
<http://www.chronosnet.com/>
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden