in reply to Re: DB_File modes
in thread DB_File modes

Be advised, on some versions/ports tie DOES NOT return the reference to the underlying object of the tie on success.

Um, tie always returns the reference to the underlying object, always.

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Re^3: DB_File modes
by chuckbutler (Monsignor) on Feb 11, 2010 at 23:38 UTC

    ...Mostly on non-Unix platforms. You sometimes receive just a 1, true, on success. I have been burned on this a few times, but then again, I work with a lot of non-Unix distributions. Thanks. -c

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      Since you arent going to elaborate, I'll just go ahead and refute your claims

      DB_File has contained this code longer than perl 5.5 has existed. The situation you describe is nigh impossible (bless would have to fail and return 1, TIEHASH would have to fail and return 1).

      15 May 1997 http://search.cpan.org/~chips/perl5.004/

      07 May 1997 http://cpansearch.perl.org/src/PMQS/DB_File-1.14/DB_File.pm 

      sub TIEHASH
{
    my $pkg = shift ;
 
    bless { VALID => { map {$_, 1} 
               qw( bsize ffactor nelem cachesize hash lorder)
             }, 
        GOT   => {}
          }, $pkg ;
}

      [download]

      If you intentionally return 1 , tied would return undef.

      Read more... (1120 Bytes)
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      That is not a very convincing argument.
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