How do I see a C/C++ source file after preprocessing in Visual Studio?

Question

Let\'s say I have a source file with many preprocessor directives. Is it possible to see how it looks after the preprocessor is done with it?

Answer 1

On Windows OS, a simple one line answer to this question is to use the below command in DOS prompt to see the preprocessed file:

CL /P /C myprogram.c

This will generate a file called myprogram.i. Open it and look out for your expanded preprocessors.