Seeing expanded C macros

Question

If I want to expand a C macro, what are some good ways to do that (besides tracing it manually)?

For instance, GTK_WIDGET_SET_FLAGS, it uses a macro that

Answer 1

In Visual Studio, you can generate the preprocessor resulted translation unit file. You can go project options, C/C++/Preprocessor and put "Generate Preprocessed File" or "Preprocess to a File" on Yes (or use /P or /EP compiler switch to include line numbers or not).