如何在CLion中启用C ++ 11？ [英] How to enable C++11 in CLion?

问题描述

我试图在CLion中运行C ++ 11代码，但它不工作。它说：

I'm trying to run C++11 code in CLion but it doesn't work. It says:

...
    /projects/CLion/untitled/main.cpp:7:1: note: C++11 ‘constexpr’ only available with -std=c++11 or -std=gnu++11
...

我尝试将 CMAKE_C_FLAGS 设置为 -std = c ++ 11 或 -std = gnu ++ 11 但我仍然有同样的问题。

I tried to set CMAKE_C_FLAGS to -std=c++11 or -std=gnu++11 but I still have the same problem. Regular C++ code compiles fine.

我必须在CLion的CMake窗口中设置什么标志来编译我的C ++ 11代码？

What flag do I have to set in CLion's CMake window to compile my C++11 code?

推荐答案

我试图设置CMAKE_C_FLAGS

I tried to set CMAKE_C_FLAGS

根据文档， CMAKE_C_FLAGS 为所有构建类型设置C语言标记。对于C ++，您需要使用 CMAKE_CXX_FLAGS 来代替：

According to the documentation the CMAKE_C_FLAGS set C language flags for all build types. For C++ you need use CMAKE_CXX_FLAGS instead:

set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

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