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From: dkhusema@immd4.informatik.uni-erlangen.de (Dirk Husemann)
Newsgroups: comp.os.minix
Subject: Re^2: Future of Minix
Message-ID: <465@medusa.informatik.uni-erlangen.de>
Date: 17 Jul 89 10:03:57 GMT
References: <19654@louie.udel.EDU> <2885@ast.cs.vu.nl>
Organization: CS Department of the University of Erlangen-Nuremberg, West Germany
Lines: 58

ast@cs.vu.nl (Andy Tanenbaum) writes:

>In article <19654@louie.udel.EDU> V61%DHDURZ1.BITNET@cunyvm.cuny.edu (Ronald Lamprecht) writes:
>>The additional code should
>>be included in #ifdef DEBUG -- #endif so that it is possible to generate
>>a fast run-time library and a debugging library version. 

>Argh!  I think #ifdefs make code very hard to read and ugly.  I am not all
>that wild about the idea.

	How about using the #ifdef-#endif constructs at a different place
(header file?) and just put a macro at the appropiate place - doesn't that
look nicer?

E.g.

db.h [header file]:

#ifdef DEBUG
#define DB2(format, arg1, arg2)		/* something to print the args accor-
					ding to the format string */
#define DB3(format, arg1, arg2, arg3)	/* ditto */
...
#else /* DEBUG */
#define DB2(format, arg1, arg2)
#define DB3(format, arg1, arg2, arg3)
...
#endif /* DEBUG */


codefile.c [code file]:

codecall(msg, count)
char	*msg;
int	count;
{
	DB2("codecall(%s, %d)\n", msg, count);
	...
}


	I think this wouldn't look too bad, but should do it!

	How about it?

>Andy Tanenbaum (ast@cs.vu.nl)

	Dirk Husemann
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