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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!news.kei.com!uhog.mit.edu!uw-beaver!news.u.washington.edu!news.alt.net!news.serv.net!solaris.cc.vt.edu!briggs From: briggs@puma.bevd.blacksburg.va.us (Allen Briggs) Newsgroups: comp.unix.bsd.netbsd.misc Subject: Re: What is __P() for? Date: 28 Nov 1995 13:49:21 GMT Organization: Home, Blacksburg, Virginia Lines: 28 Message-ID: <49f411$1s3@solaris.cc.vt.edu> References: <498eac$2gm@taco.cc.ncsu.edu> NNTP-Posting-Host: puma.bevd.blacksburg.va.us NNTP-Posting-User: briggs In article <498eac$2gm@taco.cc.ncsu.edu>, Kevin P. Neal <kpneal@eos.ncsu.edu> wrote: >What is the purpose of this: > >int __P(functname(int arg)); > >(Did I do that right?) What is the point? Doesn't it just >get converted by the preprocessor into (funct...) anyway? It's actually: int functname __P((int arg)); It's used to support ANSI function prototypes on systems that can handle it, and to not blow up on systems that don't. For ANSI C systems, that will expand to: int functname (int arg); And for non-ANSI: int functname (); Believe it or not, some systems still don't ship with ANSI C compilers, although GNU is almost always an option.... -allen -- Allen Briggs - end killing - allen.briggs@bev.net ** MacBSD == NetBSD/mac68k ** Where does all my time go? <a href="http://www.netbsd.org/">Guess.</a>