GCC 4.8.1 C ++ 11是否已完成? [英] Is GCC 4.8.1 C++11 complete?

问题描述

操作系统是Windows.

OS is windows.

首先，我会说我没有C ++或任何其他编译语言的经验.我曾经使用过CPython并对此很熟悉，但是直到今天早些时候，我什至从未浏览过C ++源代码.

I'll start off by saying that I have no experience with C++, or any other compiled language. I've used CPython a bit and am familiar with that, but, until earlier today, I'd never even glanced at C++ source.

我正在尝试自学C ++，所以我一直在玩弄它，而我遇到的一个问题是错误:

I'm trying to teach myself C++, so I've been playing around with it a bit, and one problem I'm having is the error:

error: 'to_string' was not declared in this scope

显然，to_string是C ++ 11的东西，应该就可以了.我下载了最新的MinGW，并将其添加到我的路径中-我已检查并运行

Apparently, to_string is a C++11 thing, which should be fine. I downloaded the latest MinGW, added it to my path - I have checked, and running

g++ - v

确实告诉我已经安装了4.8.1版.我正在使用的IDE的Code :: Blocks认为它没有问题，但是它根本不会使用任何C ++ 11东西，给了我类似上面的错误.并非C ++ 11独有的东西可以很好地编译.

does indeed tell me that I have version 4.8.1 installed. The IDE I'm working with, Code::Blocks finds it no problem, but it simply won't use any of the C++11 stuff, giving me errors such as the one above. Things not exclusive to C++11 compile fine.

我已经检查了编译器标志下的一部分，以遵循C ++ 11语言标准"，但是即使如此，我仍然遇到相同的错误.我真的不确定发生了什么-我已经检查了一下，所有建议都是更新IDE或MinGW(两者都是最新的)，或者选择该标志，正如我说，已经被选中.

There is a section under compiler flags to "follow the C++11 language standard", which I have checked, but, even then, I get the same errors. I'm really not sure what's going on - I've looked this up, and all of the suggestions are to update either the IDE or MinGW (both of which are up to date), or to select that flag, which, as I said, is already selected.

任何有C ++经验的人都知道会发生什么吗?b

Does anyone with more experience with C++ have any idea what might be going on?b

推荐答案

我的理解是，除regex支持外，G ++的C ++ 11支持在4.8.1中已基本完成.

My understanding is that, other than regex support, G++'s C++11 support is largely complete with 4.8.1.

以下两个链接突出显示了G ++ 4.8.1和libstdc ++中C ++ 11支持的状态:

The following two links highlight the status of C++11 support in G++ 4.8.1 and libstdc++:

• GCC 4.8.x中的C ++ 11状态.
• libstdc ++中的C ++ 11状态.请注意，适用于最新的SVN版本，与特定的G ++版本无关；因此期望它对G ++是乐观的".

• C++11 status in GCC 4.8.x.
• C++11 status in libstdc++. Note that this is for the latest SVN release, not tied to a specific G++ release; therefore expect it to be "optimistic" with respect to G++.

但是，要编译C ++ 11代码，则在编译时需要包括命令行标志-std=c++11.

To compile C++11 code, though, you need to include the command line flag -std=c++11 when you compile.

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