C++11 in Mac (VsCode)

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For some purposes, mac is using clang instead of gcc. You can still use clang++ or g++ to run a .cpp file. But basically, clang will use -std=c++98 as default.

So if you want to switch to new c++ standard in VsCode (Mac), do as follows:

  1. Edit you c++ settings of VsCode:

    1. create .vscode/c_cpp_properties.json

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      {
          "configurations": [
              {
                  "name": "Mac",
                  "includePath": [
                      "${workspaceFolder}/**"
                  ],
                  "defines": [],
                  "macFrameworkPath": [
                      "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks"
                  ],
                  "compilerPath": "/usr/bin/clang",
                  "cStandard": "c11",
                  "cppStandard": "c++11",
                  "intelliSenseMode": "macos-clang-x64"
              }
          ],
          "version": 4
      }

    2. In terminal:

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      echo "alias g++='g++ -std=c++11'" >> ~/.bashrc
      source    ~/.bashrc

Run your .cpp files in terminals:

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g++ filename.cpp -o objectname
./objectname

Note: you can use g++ in std11, but clang++ is still in std98. (clang/gcc is for .c file)