C++ and GitHub Copilot

Q: The terminal output is the same after editing the C++ program, is it necessary to use g++ in order to generate new output?

A: Yes, when you edit your C++ program and want to see the changes reflected in the terminal output, you need to recompile your code using g++.

Step 1: Edit your code

Step 2: Save your changes

Step 3: Recompile your code: Use the g++ compiler to recompile your program. You can do this by running a command like:

g++ -o output_file your_program.cpp

Step 4: Run the program

Q: The GitHub Copilot recommends using g++ -std=c++20 -o your_program your_program.cpp which is different from the step 3 above.

A: -std=c++20: This flag specifies that the compiler should use the C++20 standard. If your code utilizes features specific to C++20, this is necessary.

Both commands will compile your C++ program, but the Copilot recommendation is more specific, ensuring compatibility with the C++20 standard and clearly naming the output file.

So, using the following command can provide more consistency and clarity in your workflow.