Re: The Scope and Ownership of fedora-list

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On Thu, 2008-08-28 at 11:09 -0500, Mike Chambers wrote:
> On Thu, 2008-08-28 at 10:32 -0500, Mike McCarty wrote:
> 
> > It's (traditional) C. Put it into a file like self-rep.c and then
> > 
> > $ gcc -o self-rep self-rep.c
> > $ ./self-rep
> > 
> > and see what happens.
> 
> [[email protected] ~]$ gcc -o test test.c
> test.c:1: warning: data definition has no type or storage class
> test.c:1: warning: initialization makes integer from pointer without a
> cast
> test.c: In function ‘main’:
> test.c:1: warning: incompatible implicit declaration of built-in
> function ‘printf’
> test.c:1: warning: passing argument 1 of ‘printf’ makes pointer from
> integer without a cast
> [[email protected] ~]$ ./test 
> p="p=%c%s%
> c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);}[[email protected]
> ~]$ 
> 
> That's what happened when doing it on a F9 box.

A later post in the thread gets by with one warning for not #including
stdio.h, but getting it perfectly standard and portable is tough.

For one thing, the #include is required and has to be on its own line.
For another, it relies on the fact that ASCII 34 is ".

-- 
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs

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