Path: utzoo!attcan!uunet!portal!cup.portal.com!Devin_E_Ben-Hur From: Devin_E_Ben-Hur@cup.portal.com Newsgroups: comp.lang.c Subject: Re: Curious about function prototypes... Message-ID: <6519@cup.portal.com> Date: 15 Jun 88 00:43:43 GMT References: <654@orion.cf.uci.edu> <8073@brl-smoke.ARPA> <273@spsspyr.UUCP> Organization: The Portal System (TM) Lines: 25 XPortal-User-Id: 1.1001.3645 Someone asked about how to use the pre-processor to support pre-dpANS function definitions. Try this (admittedly ugly) scheme: #ifdef __STDC__ #define _PROTO1_(t1,a1) (t1 a1) #define _FNCDF1_(t1,a1) (t1 a1) #define _PROTO2_(t1,a1,t2,a2) (t1 a1, t2 a2) #define _FNCDF2_(t1,a1,t2,a2) (t1 a1, t2 a2) /* ... _xxxxxN_ */ #else #define _PROTO1_(t1,a1) () #define _FNCDF1_(t1,a1) (a1) t1 a1; #define _PROTO2_(t1,a1,t2,a2) () #define _FNCDF2_(t1,a1,t2,a2) (a1,a2) t1 a1; t2 a2; /* ... _xxxxxN_ */ #endif extern int foo _PROTO2_(int,an_integer, char *,a_char_ptr); int foo _FNCDF2_(int,an_integer, char *,a_char_ptr) { /* ... */ }