RTTI和异常之间有关系吗？ [英] Is there a relation between RTTI and exceptions?

问题描述

我记得在禁用RTTI和例外的平台上，以及在启用了它们的其他平台上编码。然而，我不记得在一个平台上启用一个并禁用另一个的编码。

这两个概念之间有什么依赖关系吗？换句话说，异常是否需要RTTI来运行？或者相反？

解决方案

不，异常不需要RTTI功能，反之亦然都是独立的功能。

一些实现可能允许你禁用异常（gcc中的-fnoexceptions），但我不知道任何需要RTTI的异常实现，反之亦然。 / p>

I remember coding on platforms that had both RTTI and exceptions disabled, and on others that had them both enabled. However, I cannot remember coding on a platform that would enable one and disable the other one.

Is there any kind of dependency between the two concepts? Said differently, do exceptions need RTTI to function? Or the contrary?

解决方案

No, Exceptions do not need RTTI functionality neither vice versa both are separate features.

Some of the implementations might allow you to disable exceptions(-fnoexceptions in gcc) but I don't know of any implementation which needs RTTI for exceptions or vice versa.

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