I need to debug a C code with lots of macros, of which a bunch of them are not trivial at all and they include several (lots of) lines. That makes it impossible to debug, since macros are expanded in a single line and you never know where an error comes from. On the other hand, its easy with sed to take the preprocessor output and add lines after each semicolon.
I won't discuss about being a good practice to use macros such as these, because I can't do much about that. But I'd like to know whether I could add an stage to the compiler (I use several compilers:icc,gcc,xlc) between preprocessing and compiling, so it I rund that sed command.
By now, I will try with what I found in this post. I also tried the option of the wrapper for compiling single files and, by the moment, it does the trick. In the wrapper, I preprocess (with -E) the file, I then process the preprocessed file with sed and some rules, and then I compile it.