How to Resolve VS Code Compilation Problems with Multiple .cpp Files?

VS Code Compiling Issues with Multiple .cpp Source Files

When working with multiple .cpp source files in VS Code, it's possible to encounter issues during compilation. Unlike other development environments such as Codeblocks or Visual Studio Community 2017, VS Code may not automatically recognize all source files by default.

To address this issue, one needs to modify the tasks.json configuration file. Add the following lines to your tasks.json:

    {
        "label": "g++.exe build active file",
        "args": [
            "-g",
            "${fileDirname}\**.cpp",
            //"${fileDirname}\**.h",
            "-o",
            "${fileDirname}\${fileBasenameNoExtension}.exe",
        ],
    }

This tells VS Code to look for all .cpp files in the current file directory and compile them into an executable with the name of the active file.

Additionally, to automatically build the project before debugging, modify launch.json and add the following line:

"preLaunchTask": "g++.exe build active file"

After these modifications, VS Code should be able to compile and run programs with multiple .cpp source files correctly.

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