关于在C和C ++中使用offsetof？ [英] About offsetof usage in C and C++?

问题描述

在C中，我看到一些使用offsetof来计算结构中的成员到其开始的偏移量？

In C, I saw some usage of offsetof to calculate the offset of a member in the structure to its beginning?

仍建议在C ++中使用？

Is it still recommended to use in C++? Any other way to do this without this macro?

推荐答案

C ++有指向成员的指针。这些类似于偏移，但是（1）类型安全和（2）更通用 - 它们也使用方法，基类等。

C++ has pointers to members. These are similar to offsets, but (1) typesafe and (2) more generic - they also work with methods, on base classes, etc.

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