How to Resolve C Build Errors in VS Code When Using Multiple Source Files?

VS Code: Overcoming Build Errors in C Programs with Multiple Source Files

When attempting to build C programs with multiple .cpp source files in VS Code using the GCC Compiler, users may encounter issues if the Cat.cpp file is not being recognized. To rectify this, the following adjustments can be made to your project files:

tasks.json Modification:

{
  // ... (Existing code)

  "tasks": [
    // ... (Existing tasks)

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

The added code instructs the shell command to search for all .cpp files in the current directory (fileDirname) and compile them into a single executable named after the active file (fileBasenameNoExtension.exe).

launch.json Modification:

{
  // ... (Existing code)

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

This addition sets the pre-launch task as the task defined in tasks.json, ensuring that the build task is executed before launching the debugger.

With these modifications, VS Code will now build your program by including the Cat.cpp file, allowing you to compile and execute your project successfully.

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