I get 2244604 on the first run, then 2244628 on all subsequent runs (within the same command window). 

This is perl, v5.6.1 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)

Binary build 633 provided by ActiveState Corp. http://www.ActiveState.
+com
Built 21:33:05 Jun 17 2002

[download]

I also checked $-[0] and the @+ array using this: 

use strict;
use warnings;

my $string = 'abc' x ( 3 );

while( $string =~ /b/g ) {
    print "$-[0], $#-, $+[0], $#+\n";
}

[download]

Output: 

C:\>test.pl
1, 2244604, 2, 0
4, 2244604, 5, 0
7, 2244604, 8, 0

C:\>test.pl
1, 2244628, 2, 0
4, 2244628, 5, 0
7, 2244628, 8, 0

C:\>test.pl
1, 2244628, 2, 0
4, 2244628, 5, 0
7, 2244628, 8, 0

C:\>test.pl
1, 2244628, 2, 0
4, 2244628, 5, 0
7, 2244628, 8, 0

[download]

Update: also tested on Red Hat Linux release 7.3 (OS 2.4.18-3): 

This is perl, v5.6.1 built for i386-linux

[/d]$ perl test.pl
1, 56, 2, 0
4, 56, 5, 0
7, 56, 8, 0
[/d]$ perl test.pl
1, 56, 2, 0
4, 56, 5, 0
7, 56, 8, 0

[download]

In reply to Re: @- Bug on the loose, lets isolate it by bobf
in thread @- Bug on the loose, lets isolate it by davido

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.