C ++ 11的标准库有向前声明头吗？ [英] Will the standard library of C++11 have forward declaration headers?

问题描述

在C ++ 03中没有< vectorfwd> 样文件，而有< iosfwd> header。

$ b $ p

更新：

我收到了语言创建者的回答：实际上不可能要求所有STL供应商提供此信息 >

解决方案

不，没有新的转发文件，只是旧的< iosfwd> 。

完整的I / O系统与向量相比很大，所以优势可能不会太大。

In C++03 there are no <vectorfwd>-like files, while there is the <iosfwd> header. Will this change in the future?

It could be valuable to reduce dependencies and for better modularity.

UPDATE:

I have received an answer from the language creator: "practically it's not possible to require this from all STL vendors".

解决方案

No, there are no new forward files, just the old <iosfwd>.

The complete I/O-system is large compared to a vector, so the advantage would perhaps not be that significant.

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