boost :: any是否需要RTTI? [英] Does boost::any need RTTI?

问题描述

在Boost网站上，我没有找到关于boost :: any的使用或RTTI的信息.

On the Boost web site I found no information regarding the use or RTTI by boost::any.

我在几个地方读到这是一个要求，但是后来我建立了一个简单的测试项目，它在有和没有RTTI的情况下都可以构建.

I read in a few places that this is a requirement, but then I built a simple test project, and it builds both with and without RTTI.

那么，boost :: any和类似的类是否需要RTTI及其性能和内存问题?

So, is RTTI, with its performance and memory issues, needed by boost::any and similar classes?

推荐答案

由于boost::any不需要boost 1.57 RTTI.请记住，所有用作boost::any的对象都必须是可复制的.

Since boost 1.57 RTTI is not needed for boost::any. Rememeber that all objects used as boost::any must by copyable.

https://svn.boost.org/trac/boost/ticket/10346

这篇关于boost :: any是否需要RTTI?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！