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From: c60c-2ca@WEB.berkeley.edu
Newsgroups: gnu.g++,gnu.g++.bug,comp.lang.c++
Subject: Problem in pointers to function??
Message-ID: <1990Mar17.211844.17043@agate.berkeley.edu>
Date: 17 Mar 90 21:18:44 GMT
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Organization: University of California, Berkeley
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	I discovered the following bug (or is it?) while trying to compile
the following program:

void print(void)
{
	;	// dummy statement
}

int main(void)
{
	void (*funcPointer)(void);	// This is line 8
	funcPointer = print;

	funcPointer();
	(*funcPointer)();

	return 0;
}

Here is what I got when I tried to compile it...

bug.c: In function int main ():
bug.c:8: `funcPointer' undeclared (first use this function)
bug.c:8: (Each undeclared identifier is reported only once
bug.c:8: for each function it appears in.)
bug.c:8: parse error before `)'


However, if I add the type definition:

	typedef (*PTR_TO_FUNCTION)(void);

And then replace line 8 with:

	PTR_TO_FUNCTION funcPointer;

The program compiles.  Is there something I am doing wrong?
By the way, the compiler I was using is g++ (version 1.37.1) on a SUN 
workstation.

Please email response to my account.  
Thanks.

Andrew Choi
Internet Address:  c60c-2ca@web.berkeley.edu or c186cd@cory.berkeley.edu