Re: NSArray - waste of time?
Re: NSArray - waste of time?
- Subject: Re: NSArray - waste of time?
- From: Dave Camp <email@hidden>
- Date: Wed, 25 Apr 2007 14:26:04 -0700
That would be important if profiling your application indicated you
were using an inordinate amount of memory or time managing arrays.
For most uses, the overhead of NSArray is not noticeable. Don't fall
into the trap of premature optimization unless you have a very
specific problem that requires it.
Dave
On Apr 25, 2007, at 2:02 PM, Fen Soares wrote:
There is also the footprint to consider, surely? A C-style array is
likely
to be much smaller than an NSArray of objects, particularly in the
case of
primitive data types such as floats vs NSNumber objects.
On 14/04/07, Scott Stevenson <email@hidden> wrote:
On Apr 14, 2007, at 11:26 AM, William Squires wrote:
> What advantage does using an NSArray/NSMutableArray have over using
> an ordinary C-style static/dynamic 'array'?
I think a better question is why you would want to use a C-style
array if you have don't have to.
NSArray is safer, easier to use, is natively supported throughout
Cocoa, and is bridged to the prodecural CFArrayRef structure. The
implementation is also available through Apple's open source
repositiory.
If you absolutely need to use every ounce of raw speed, you should
use a C-style array. Otherwise, make things easy on yourself and use
NSArray. You also might find this interesting:
http://ridiculousfish.com/blog/archives/2005/12/23/array/
- Scott
---
You are in a maze of testy little Java VMs, all subtly different.
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