Path: utzoo!telly!ddsw1!mcdchg!rutgers!tut.cis.ohio-state.edu!PURDUE.EDU!spaf
From: spaf@PURDUE.EDU (Gene Spafford)
Newsgroups: gnu.gcc.bug
Subject: Bug with functions as parameters?
Message-ID: <8810051813.AA01101@uther.cs.purdue.edu>
Date: 5 Oct 88 18:13:56 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: SERC, Department of Computer Sciences, Purdue Univ.
Lines: 44

Index: 
    gcc 1.28 on a Sun 3/50, 3/60, 3/280 all running 3.4 SunOS

Source to reproduce problem:
	#include <stdio.h>

	int bar ()
	{
	   printf("hi!\n");
	}

	void foo (x)
	int x ();
	{
	  x();
	}

	int main()

	{
	   foo(bar);
	}

As I understand both K&R C and the new draft, this program should
not compile because the declaration of "int x ()" should conflict
with the parameter "x" provided as an argument.

Sun "cc" correctly flags this as an error, but gcc does not.

(The correct declaration should be "int (*x) ();" )

Script:
	Script started on Wed Oct  5 13:06:05 1988
	uther(96)> cc bogus.c
	"bogus.c", line 9: x declared as parameter to non-function
	"bogus.c", line 9: warning: a function is declared as an argument
	uther(97)> gcc -traditional bogus.c
	uther(98)> gcc -ansi bogus.c
	uther(99)> gcc -pedantic bogus.c
	uther(100)> ./a.out
	hi!
	uther(101)> ^D

	script done on Wed Oct  5 13:06:53 1988