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• 绘制地图的参考或索引(如果实际上没有校正)
原标题:const_reference or iterator for map (when not actually iterating)

我有一些守则,使用探测器穿透无序的地图的所有内容,但在这个大厅内,还有若干其他程序,由我储存该地图中的某些内容,而且通常会大量跳跃,但不会 it(不包括最外部的探测器)。

在我看来,如果我实际上不重复使用,则使用<条码>无序号_地图:const_ reference<>code”这一要素可能更为合适。 情况如何? 阻止我使用“参考书”的唯一东西是,从我的快速通道搜索来看,他们似乎被民众使用,或至少很少讨论。

问题回答

Const correctness is one of the keys to C++ programming.
Writing a program and adding const correctness after the fact is very hard (as it cascades through the code) you need to do it upfront.

因此,你更喜欢使用召集人而不是召集人。 但如同所有事情一样,这是判决呼吁。

个人: 如果我不想修改集装箱内的任何内容,那么我会使用召集人,但如果有可能在物体上使用一种非组合方法,那么你就只能使用该装置。





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