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Re: NSInteger versus int

From: David Chisnall
Subject: Re: NSInteger versus int
Date: Thu, 6 Aug 2009 17:55:38 +0100

On 6 Aug 2009, at 17:50, Martin Kalbfuß wrote:

When should I use the NS types? I can't see a reason for there exsistens. I'm
not sure if my sdl wrapper should use them.

NSInteger exists to make it easier for C89 code to be 64-bit safe. NSInteger is equivalent to C99's intptr_t; an integer which is guaranteed to be the same width as a pointer. You can safely cast between void* and NSInteger, but you can't (always) safely cast between void* and int.


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