How to Enable C 17 Support in the VSCode C Extension?

Enabling C 17 Support in VSCode C Extension

In VSCode, you may find yourself facing error messages pertaining to the lack of support for C 17 features like std::string_view, despite the successful build process. To resolve this, it's essential to configure the C extension and debugger to recognize and utilize C 17.

Navigate to the Visual Studio Code extension settings and search for "cppstandard." In the drop-down menu, select "C 17." This action instructs the C extension to treat your code as C 17 compatible, eliminating the intelli-sense errors.

For the debugger to correctly interpret the C 17 syntax, ensure you have the following configurations in your tasks.json file:

{
  "tasks": [
    {
      "type": "cppbuild",
      "label": "C/C++: g++ build active file",
      "command": "/usr/bin/g++",
      "args": [
        "-std=c++17",
        "-I",
        "${fileDirname}",
        "-g",
        "${fileDirname}/*.cpp",
        "-o",
        "${workspaceFolder}/out/${fileBasenameNoExtension}.o"
      ],
      "options": {
        "cwd": "${workspaceFolder}"
      },
      "problemMatcher": ["$gcc"],
      "group": {
        "kind": "build",
        "isDefault": true
      }
    }
  ],
  "version": "2.0.0"
}

The "-std=c 17" argument defines the C 17 standard, ensuring that the g compiler interprets the code accurately. Remember to create an "out" folder within the workspace root if directly copying the tasks.json configuration.

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