本文介绍了在枚举元素的数量的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在C,有一个很好的方法来跟踪一个枚举元素的数量?我见过
In C, is there a nice way to track the number of elements in an enum? I've seen
enum blah {
FIRST,
SECOND,
THIRD,
LAST
};
但是,如果项目是连续的,从零开始这仅适用。
But this only works if the items are sequential and start at zero.
推荐答案
我不相信有。但是你会用这样的数字做,如果他们不连续的,而你还没有他们的名单的地方?如果他们是连续的,但在不同的数字开始,你总是可以做的:
I don't believe there is. But what would you do with such a number if they are not sequential, and you don't already have a list of them somewhere? And if they are sequential but start at a different number, you could always do:
enum blah {
FIRST = 128,
SECOND,
THIRD,
END
};
const int blah_count = END - FIRST;
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