From owner-freebsd-hackers  Fri Feb 26 13: 1: 9 1999
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Date: Fri, 26 Feb 1999 20:57:44 +0000
From: Andy Doran <ad@psn.ie>
Organization: Pobalscoil Neasain
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To: "Alton, Matthew" <Matthew.Alton@anheuser-busch.com>
Cc: "'Hackers@FreeBSD.ORG'" <Hackers@FreeBSD.ORG>,
	"Ladendorf, Matt" <Matt.Ladendorf@anheuser-busch.com>
Subject: Re: printf wierdness
References: <BED2E68B5FB4D21193C90008C7C56836564C53@STLABCEXG012>
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printf() is treating the %llu type as an unsigned long (%lu), 
so it's taking the value for %s from the second 32-bits in
'foo'. Check the printf(3) manpage.

Andy. 


"Alton, Matthew" wrote:
> 
> Why is this happening?
> 
> $ vi foo.c
> 
> #include <stdio.h>
> 
> int
> main(void)
> {
>  unsigned long long int foo = 0;
>  char *bar = "Hidely Ho!";
> 
>  (void)printf("%llu    %s\n", foo, bar);
>  (void)printf("%s    %llu\n", bar, foo);
> 
>  return 0;
> }
> 
> ~
> ~
> ~
> ~
> ~
> ~
> ~
> ~
> ~
> foo.c: 14 lines, 196 characters.
> $ make foo
> cc     foo.c   -o foo
> $ ./foo
> 0    (null)
> Hidely Ho!    0
> $
> 
> Matthew Alton
> Computer Services - UNIX Systems Administration
> (314)632-6644   matthew.alton@anheuser-busch.com
>                 alton@plantnet.com
> 
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