blocks|key|305596|text|如前所述-在项目、Makefile或其他情况下，这是一个项目配置问题，您可能还需要指定其他标志。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|305597|但是，如果是一次性程序，通常只需要编写g%2B%2B+file.cpp+&&+./a.out就可以了|305598|嗯，我非常希望有一些#pragma可以在源代码级别打开，或者可能是一个默认的扩展-比如.cxx或.C11或其他什么，默认情况下触发它。但到今天为止，还没有这样的功能。|305599|但是，由于您可能是在手动环境(即shell)中工作，所以您可以在.bashrc+(或其他任何环境)中使用别名：|305600|alias+g%2B%2B11="g%2B%2B+-std=c%2B%2B0x"|code-block|syntax|javascript|305601|或者，对于较新的G%2B%2B+(当您想要感受“真正的C%2B%2B11”时)|305602|alias+g%2B%2B11="g%2B%2B+-std=c%2B%2B11"|305603|如果您如此讨厌C%2B%2B03，您甚至可以使用g%2B%2B本身的别名;)|305604|entityMap^0|9|8|0|J|N|0|A|7|17|4|1C|4|0|W|7|0|0|0|0|K|3|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|1E|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1F|8|@]|D|@]|E|$]]|$1|S|3|T|5|N|7|1G|8|@]|D|@]|E|$O|P]]|$1|U|3|V|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|W|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|X|$]]

As previously mentioned - in case of a project, <code>Makefile</code> or otherwise, this is a project configuration issue, where you'll likely need to specify other flags too.

But what about one-off programs, where you would normally just write <code>g++ file.cpp &amp;&amp; ./a.out</code>?

Well, I would much like to have some <code>#pragma</code> to turn in on at source level, or maybe a default extension - say <code>.cxx</code> or <code>.C11</code> or whatever, trigger it by default. But as of today, there is no such feature.

But, as you probably are working in a manual environment (i.e. shell), you can just have an alias in you <code>.bashrc</code> (or whatever):

<pre><code>alias g++11="g++ -std=c++0x"
</code></pre>

or, for newer G++ (and when you want to feel "real C++11")

<pre><code>alias g++11="g++ -std=c++11"
</code></pre>

You can even alias to <code>g++</code> itself, if you hate C++03 that much ;)

blocks|key|88642|text|我认为您可以使用specs文件来完成此操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|88643|在MinGW下，你可以运行|88644|gcc+-dumpspecs+>规格|88645|上面写着|88646|*cpp:
%25{posix:-D_POSIX_SOURCE}+%25{mthreads:-D_MT}|code-block|syntax|javascript|88647|您可以将其更改为|88648|*cpp:
%25{posix:-D_POSIX_SOURCE}+%25{mthreads:-D_MT}+-std=c%2B%2B11|88649|然后把它放在|88650|/mingw/lib/gcc/mingw32//specs|88651|我确信您可以在没有MinGW构建的情况下完成同样的工作。但是不确定将specs文件放在哪里。|88652|文件夹可能是/gcc/lib/或/gcc/。|88653|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|17|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|18|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|19|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|Z|$]]

I think you could do it using a specs file.

Under MinGW you could run 
gcc -dumpspecs > specs

Where it says 

<pre><code>*cpp:
%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}
</code></pre>

You change it to

<pre><code>*cpp:
%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} -std=c++11
</code></pre>

And then place it in 
/mingw/lib/gcc/mingw32/&lt;version&gt;/specs

I'm sure you could do the same without a MinGW build. Not sure where to place the specs file though.

The folder is probably either /gcc/lib/ or /gcc/.

blocks|key|305668|text|如果您正在使用sublime，那么如果您将其作为构建系统的代码添加到build中，则此代码可能会起作用。您可以使用this+link了解更多信息。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|305669|{
++++"shell_cmd":+"g%2B%2B+\"${file}\"+-std=c%2B%2B1y+-o+\"${file_path}/${file_base_name}\"",
++++"file_regex":+"%5E(..[%5E:]*):([0-9]%2B):?([0-9]%2B)?:?+(.*)$",
++++"working_dir":+"${file_path}",
++++"selector":+"source.c,+source.c%2B%2B",

++++"variants":
++++[
++++++++{
++++++++++++"name":+"Run",
++++++++++++"shell_cmd":+"g%2B%2B+\"${file}\"+-std=c%2B%2B1y+-o+\"${file_path}/${file_base_name}\"+&&+\"${file_path}/${file_base_name}\""
++++++++}
++++]
}|code-block|syntax|javascript|305670|entityMap|0|LINK|mutability|MUTABLE|url|https://codeforces.com/blog/entry/47152^0|1L|9|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you are using sublime then this code may work if you add it in build as code for building system. You can use <a href="https://codeforces.com/blog/entry/47152" rel="nofollow noreferrer">this link</a> for more information.

<pre><code>{
 "shell_cmd": "g++ \"${file}\" -std=c++1y -o \"${file_path}/${file_base_name}\"",
 "file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
 "working_dir": "${file_path}",
 "selector": "source.c, source.c++",

 "variants":
 [
 {
 "name": "Run",
 "shell_cmd": "g++ \"${file}\" -std=c++1y -o \"${file_path}/${file_base_name}\" &amp;&amp; \"${file_path}/${file_base_name}\""
 }
 ]
}
</code></pre>

I use gcc 4.8.1 from <a href="http://hpc.sourceforge.net">http://hpc.sourceforge.net</a> on Mac OSX Mountain Lion. I am trying to compile a C++ program which uses the <code>to_string</code> function in <code>&lt;string&gt;</code>. I need to use the flag <code>-std=c++11</code> every time:

<pre><code>g++ -std=c++11 -o testcode1 code1.cpp
</code></pre>

Is there a way to include this flag by default?

How do I enable C++11 in gcc?

我在Mac Lion上使用的gcc 4.8.1。我正在尝试编译一个使用<string>中的to_string函数的C++程序。我每次都需要使用标志-std=c++11：g++ -std=c++11 -o testcode1 code1.cpp有没有办法在默认情况下包含这个标志？

问如何在gcc中启用C++11？
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