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From: plocher@puff.wisc.edu (John Plocher)
Newsgroups: net.lang.c
Subject: Re: Disappearing function call
Message-ID: <219@puff.wisc.edu>
Date: Fri, 3-Oct-86 14:01:55 EDT
Article-I.D.: puff.219
Posted: Fri Oct  3 14:01:55 1986
Date-Received: Sat, 4-Oct-86 12:12:15 EDT
References: <357@cullvax.UUCP>
Reply-To: plocher@puff.WISC.EDU (John Plocher)
Organization: U of Wisconsin CS Dept
Lines: 25
Summary: see postings in net.sources...

<f u cn rd ths, u hv no ln etr>

There were some debug routines posted in net.sources which use this format:

#ifdef DEBUG
#  define TRACE printf
#else
#  define TRACE
#endif
 ...
    TRACE("The error '%s' is on line %d\n", errorname, lineno);
 ...
which expands into
    printf(...) if DEBUG is defined,
and into
    (...) if not.   Note that (...) does NOT GENERATE CODE, but is rather
		    just an expression.

-- 
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