Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!decvax!ima!haddock!karl
From: karl@haddock.ima.isc.com (Karl Heuer)
Newsgroups: comp.lang.c
Subject: Re: Prototyping char parameters in ANSI C
Message-ID: <12842@haddock.ima.isc.com>
Date: 28 Apr 89 03:55:21 GMT
References: <3950014@eecs.nwu.edu> <8661@xanth.cs.odu.edu>
Reply-To: karl@haddock.ima.isc.com (Karl Heuer)
Organization: Interactive Systems, Boston
Lines: 15

In article <8661@xanth.cs.odu.edu> kremer@cs.odu.edu (Lloyd Kremer) writes:
>In article <3950014@eecs.nwu.edu> gore@eecs.nwu.edu (Jacob Gore) writes:
>>[gcc complains about]
>>	void f(char);
>>	void f(c) char c; {...}

>The responses I have seen all make reference to "old style" automatic widening
>... How do you tell the compiler that you want this *NEW* behavior?  If a
>full prototype isn't good enough, what is?

Specify a prototype on the *definition* as well as the declaration.  Thus:
	extern void f(char);
	void f(char c) {...}

Karl W. Z. Heuer (ima!haddock!karl or karl@haddock.isc.com), The Walking Lint