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From: sansom@trwrb.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: sizeof("string")
Message-ID: <1765@trwrb.UUCP>
Date: Tue, 14-Apr-87 12:17:39 EST
Article-I.D.: trwrb.1765
Posted: Tue Apr 14 12:17:39 1987
Date-Received: Wed, 15-Apr-87 05:46:47 EST
References: <8704120143.AA11235@cory.Berkeley.EDU> <2006@ihuxz.ATT.COM>
Reply-To: sansom@trwrb.UUCP (Richard Sansom)
Organization: TRW EDS, Redondo Beach, CA
Lines: 35

In article <2006@ihuxz.ATT.COM> burris@ihuxz.ATT.COM (Burris) writes:
>bla, bla, bla, ...Now if it were as follows:
>char	string[ 20 ];
>char	*strpt = "hello";
>
>main()
>{
>	printf( "%d\n", sizeof( string ) );
>	printf( "%d\n", sizeof( strpt ) );
>	printf( "%d\n", sizeof( "hello" ) );
>}
>the result would be:
>20
>4
>4

(This is getting out of hand) - I just ran your program on our 4.2 BSD
system and came up with the following results:

20
4
6

Our compiler is of the "portable" variety, so I would think that it is
generating "correct" code.  Still, there clearly seems to be some fuzziness
out there regarding this type of "problem".  Some compilers treat a string
literal (e.g., "hello") as an array, and some treat it as a pointer to an
array.  I guess that's one of the reasons an ANSI standard C is in the works.

-Rich
-- 
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  /// Richard E. Sansom                   TRW Electronics & Defense Sector \\\
  \\\ {decvax,ucbvax,ihnp4}!trwrb!sansom  Redondo Beach, CA                ///
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