On Mon, 15 Dec 2003 15:48:38 -0800 (PST)
Greywolf <greywolf@starwolf.com> wrote:

> Thus spake Min Sik Kim ("MSK> ") sometime Today...
> 
> MSK> > Which version of gcc are you using?
> MSK> >
> MSK> > The above code for me actually returns (exits) 0 unless I compile with
> MSK> > -O0, gcc 3.3.2.
> MSK>
> MSK> gcc (GCC) 3.3.2 (NetBSD nb1 20031026)
> MSK>
> MSK> With optimization, it returns 0, but with -O0 it hangs.
> MSK> Did you get a core dump with -O0?
> 
> Hm.
> 
> Yes, I got a core dump.
> 
> 1)  Where are you running this program (i.e. where is it trying to dump
> 	its core?)?

In one of directories under my $HOME.

> 2)  Change the return(0) to return(c) and you will get an FPE fault
> 	no matter the optimization level, because -O[1-6] will cause gcc
> 	to generate compiled code which effectively ignores most of the
> 	function because you're assigning to but not using any of your
> 	local variables.

Changing return(0) to return(c) only makes this program hangs with
*any* optimization option.

-- 
 Min Sik Kim