如何将gcc编译器更改为ubuntu上的c ++ 11 [英] how to change gcc compiler to c++11 on ubuntu

问题描述

我使用ubuntu 12.04和默认gcc是4.6.3。它不接受c ++ 11命令，并给我输出说该命令不是c ++ 98兼容。我检查了在线，并看到人们建议不要改变操作系统上的默认编译器，因为它变得不稳定。任何人都可以建议一个修复或安全的方式下载gcc编译器是c ++ 11兼容。

I use ubuntu 12.04 and the default gcc is 4.6.3. It is not accepting c++11 commands and is giving me output saying the command is not c++98 compatible. I checked online and have seen people advising to not change default compilers on operating system as it becomes unstable. Can anybody suggest a fix or a safe way of downloading a gcc compiler that is c++11 compliant.

推荐答案

gcc 4.6.3 支持许多c ++ 11功能。但是，默认情况下禁用它们。要启用它们，请使用以下标志：

gcc 4.6.3 supports many c++11 features. However, they are disabled by default. To enable them, use the following flag:

g++ -std=c++0x ...

此标志还禁用GNU扩展;要保持其启用，请使用 -std = gnu ++ 0x 标志。

This flag also disables GNU extensions; to keep them enabled, use -std=gnu++0x flag.

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