Yeah, I know this is the wrong way to do it, and it could be done by iterating over keys and values, but I didnt want to do it that way.

I also could have done this in storable, but storable's freeze and thaw are broken on ultrasparc/solaris. So I used Data::Dumper. You get the idea, and could switch over to Storable to make it faster if you were so inclined.

Suggested usage: 

my @newarray = grep { hcmp( \%goodhash, $_ ) } @somebadhashes;

[download]
sub hcmp {
  use Digest::MD5 qw{ md5_hex };
  use Data::Dumper;
  my ($a, $b) = @_;
  my $astr = md5_hex( Dumper( $a ) );
  my $bstr = md5_hex( Dumper( $b ) );
  return ($astr eq $bstr) ? 1 : 0;
}

[download]

In reply to compare two hashes inefficiently. by deprecated

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.