在Cocoa你喜欢NSInteger还是int，为什么？ [英] In Cocoa do you prefer NSInteger or int, and why?

问题描述

NSInteger / NSUInteger 是Cocoa定义的常规内置类型的替换。

NSInteger/NSUInteger are Cocoa-defined replacements for the regular built-in types.

使用NS *类型对内置函数有什么好处吗？你喜欢什么和为什么？在32位/ 64位平台上 NSInteger 和 int 相同的宽度吗？

Is there any benefit to using the NS* types over the built-ins? Which do you prefer and why? Are NSInteger and int the same width on 32-bit / 64-bit platforms?

推荐答案

我理解的方式是NSInteger et al。是相应的C类型的架构安全版本。基本上它们的大小取决于架构，但是例如，NSInteger，保证有当前架构的任何有效的指针。

The way I understand it is that NSInteger et al. are architecture safe versions of the corresponding C types. Basically their size vary depending on the architecture, but NSInteger, for example, is guaranteed to hold any valid pointer for the current architecture.

Apple建议您使用这些工作与OS X 10.5及以后，和苹果的API：s将使用它们，所以它绝对是一个好主意，以习惯使用它们。他们需要更多的打字，但除此之外，似乎没有任何理由不使用它们。

Apple recommends that you use these to work with OS X 10.5 and onwards, and Apple's API:s will use them, so it's definitely a good idea to get into the habit of using them. They require a little more typing, but apart from that it doesn't seem to be any reason not to use them.

这篇关于在Cocoa你喜欢NSInteger还是int，为什么？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！