CPP macro expansion

[Roberto Fichera]

Hi All,

I need to obtain a preprocessed C source output, the source
code that will go to the gcc compiler proper, with all the macro
functions expanded as declared with its multi line formatting/indentation
and not as usual single long line. I need to check my final code before
the full compilation.

Does anyone know how can I do ?
Does the GNU CPP permit this ? If not :-( there is some similar C preprocessor
that perform what I need ?

Please reply directly.

Many thanks in advance.

Roberto Fichera.