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Re: Comparing contents of 2 Hashes of Hashes

by nakor (Novice)
on Aug 16, 2001 at 18:18 UTC ( #105389=note: print w/replies, xml ) Need Help??


in reply to Comparing contents of 2 Hashes of Hashes

# call as cmp_hash(\%localDigest, \%remoteDigest) # returns true or false (%localDigest == %remoteDigest) sub cmp_hash ($$) { my($h1, $h2) = @_; my @a1 = sort %$h1; my @a2 = sort %$h2; return 0 unless scalar(@a1) == scalar(@a2); for (my $i = 0; $i < $#a1; $i++) { # can't use foreach(@a1) here because we need to # know our position to find the corresponding # element in @a2 if (ref($a1[$i]) eq 'HASH') { return 0 unless ref($a2[$i]) eq 'HASH'; return 0 unless cmp_hash($a1[$i], $a2[$i]); next; } return 0 unless $a1[$i] eq $a2[$i]; } return 1; }

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