如何测试，看是否使用数量的Objective-C是范围？ [英] How to test to see if number is in range using Objective-C?

问题描述

我有一个非常基本的问题。我想知道，如果这里是在Objective-C或C内置功能来帮我找，如果一个具体的数字是在一定范围内。我知道，这可能是简单的问题，但我仍然没有找到答案。在短期方面，想避免使用多个的if和其他S此测试。

解决方案

 NSLocationInRange（C，NSMakeRange（A，（B  -  A）））

这会返回一个布尔如果c深藏在a和b。但是a，b和c必须是无符号整型。这实在是不太好找。所以我想这是更好的对自己进行比较。

 C> = A && C＆LT; = B 

I have a very basic question. I would like to know if here is a built-in function in Objective-C or C to help me find if a specific number it's in a certain range. I know that this is probably easy question but still I didn't found an answer. On short terms, would like to avoid using multiple "if"s and "else"s for this test.

解决方案

NSLocationInRange(c, NSMakeRange(a, (b - a)))

This returns a BOOL if c lies within a and b. However a,b and c must be unsigned int. And this is really not very good looking. So I guess it is far better to compare myself.

c >= a && c <= b

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