How do you ensure that your code compiles correctly before running tests or executing?

To ensure that the code compiles correctly before running tests or execution, the following steps are usually taken:

• Use a compiler with warnings enabled (-Wall in gcc/clang) to identify potential errors.
• Run the build process (e.g., via make or CMake) to check that all files compile without errors.
• In some projects, static code analysis is used to identify issues before compilation.
• Automate build and checks through CI/CD systems that do not run tests if compilation fails.

Example of a compilation command with gcc:

gcc -Wall -Werror -o myapp main.c utils.c

Here, -Werror turns warnings into errors, helping to avoid missing potential problems.