C ++迭代器取消引用和前缀递增/递减样式? *-好的样式是明智的吗? [英] C++ Iterator dereference and prefix increment/decrement style? Is *--Iter ok style wise?

问题描述

在使用C ++迭代器进行编码时，如果要使先前的值指向迭代器所指向的内容，则会写出以下内容:

In coding with C++ iterators if you wanted to get the previous value to what an iterator points to would you write:

*--Iter

或者您认为像这样添加括号会更好:

or would you think it better to add parentheses like so:

*(--Iter)

?

推荐答案

就程序的正确性而言，这无关紧要.但是我总是将其表示为*(--Iter)，因为与*--Iter相比，它更易于记录，更易于为人类所理解.

It doesn't matter as far as program correctness is concerned. But I always express this as *(--Iter) because this is more self-documenting and easier to understand to human beings than *--Iter.

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