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From: gest_ss@uhura.cc.rochester.edu (Gavin Stark)
Newsgroups: comp.lang.c
Subject: #DEFINEs and how to process them out
Summary: How to parse out whats between ifdefs
Keywords: DEFINE
Message-ID: <11085@ur-cc.UUCP>
Date: 13 Dec 90 05:04:07 GMT
Organization: University of Rochester - Rochester, New York
Lines: 20

Question:

	How do I get the following effect:  I want a program to scan
through my C source and process the #ifdef statements.  Like the
following

#define TRUE
#ifdef TRUE
int a;
#endif

should give me just:
int a;

The program I have has LOTS of ifdefs and other such constructions.  Is there
a way to parse out just the ones that actually get compiled?  Thanks for
any suggestions.

Gavin Stark
gest_ss@uhura.cc.rochester.edu