Re: appendBytes memcpy
Re: appendBytes memcpy
- Subject: Re: appendBytes memcpy
- From: Shawn Erickson <email@hidden>
- Date: Wed, 01 Aug 2007 06:42:44 -0700
On Jul 31, 2007, at 11:46 PM, roger casaliñas wrote:
I think the error is happening because we have exceeded the
capacity of
NSMutableData. It's just a guess.
Is there a way to get the capacity of NSConcreteMutableData or it's
superclasses?
They are only limited by your address space and by the 32 bit value
used to specify byte count (ignoring 64b version). In a typical
application you can allocate up to around 3 GiB worth of memory since
you virtual memory space is used to hold shared mappings of the Cocoa
framework, etc. and has a few reserved ranges. The largest single
allocation is around 2 GiB but can be less if you have fragmented
your virtual space.
Note all of this is not affect by how much physical RAM you have in
your system... since you never directly see that yourself, only
virtual RAM addresses.
-Shawn _______________________________________________
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