本地#includes [英] local #includes

问题描述

是否有某种方法可以局部(而不是全局)#include标准内容(一次针对一个函数，一个类等).以一个非常简单的示例为例，可能要使用std :: string，但仅在一个类中需要它，并且您不希望它的开销到处都是.

Is there some way to #include standard things locally (for one function, one class, etc... at a time) instead of globally. Taking a very simple example one might want to use std::string but it is only needed in one class and you don't want the overhead of it existing everywhere.

推荐答案

您可能应该将需要它的类移到单独的文件中，而不是将#include设置为本地.

Instead of making #include local, you should probably just move the class that requires it into a separate file.

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