How to Fix C 14/C 17 Compilation Errors in VS Code?

How to Setup VS Code for C 14/C 17

When compiling C code in VS Code, errors may arise indicating that C 11/higher flags are not included. Despite adding these flags to the task.json file, the issue may persist. This article addresses this problem and provides a solution.

Problem:

The error message suggests that the compiler cannot recognize language features introduced in C 11 or higher. This indicates that the compiler is using an older standard.

Solution:

Ensure that the compiler used is up-to-date and supports C 14/C 17. Verify that the task.json file has the correct compiler flags:

"args": [
                "-g",
                "-o",
                "test",
                "-std=c++14",  // Use -std=c++17 for C++ 17 compilation
                "main.cpp"
            ],

Additionally, install the "Code Runner" extension in VS Code. This extension offers a quick and convenient way to build and run code by adding a command to the settings.json file:

"code-runner.executorMap": {
    "cpp": "cd $dir && g++ -std=c++17 $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
},

This command instructs the code runner to navigate to the project directory, compile main.cpp using the C 17 standard, and execute it.

Make sure to save the changes to the settings.json file and restart VS Code for the changes to take effect.

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