Objective C中`int`数组的长度 [英] Length of an `int` array in Objective C

问题描述

我正在将一个整数数组传递给一个函数.接下来我想遍历数组.在 C 和 C++ 中，这通过简单地使用 arrayname.length 来工作，它给出了数组中的元素数量.在 Objective-C 中找到它的方法是什么?

I am passing an Integer array to a function. Next I want to traverse through the array. In C and C++ this worked by simply using arrayname.length which gave the number of elements in array. What is the way to find that in Objective-C?

[NSArrayObject length] 适用于 NSArray 类型，但我希望它适用于 int[].甚至 [XYZ count] 都不起作用(已经建议的答案)，所以我在这里寻找另一种方法.

[NSArrayObject length] works for NSArray type but I want it for int[]. Not even [XYZ count] works (an already suggested answer) so I'm looking for another way here.

推荐答案

没有任何特定于 Objective-C 的整数数组.您将使用与使用 C 相同的技术.

There isn't anything specific to Objective-C with an array of ints. You would use the same technique as if you were using C.

sz = (sizeof foo) / (sizeof foo[0]);

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