It looks to me like your problem is that you arent using strict.

The reason I say this is that the hash that $framearray->{$frameno}{$drawerno} refers to isnt %framearray, but rather an anonymous hash contained referenced by $framearray

So you have two solutions, change the offending call to $framearray{$frameno}{$drawerno}="foo"; _or_ change the %newhash=%framearray to be %newhash=%$framearray

But as I said this type of error would be instantly indentified by turning on strict. 

my %hash;
$hash{foo}{bar}="baz";
my %new=%hash;
print $new{foo}{bar},"\n"; #prints baz

my $hashref;
$hashref->{foo}{bar}='ref';
my %new2=%$hashref;
print $new2{foo}{bar},"\n"; #prints baz

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BTW, you should realize that %x=%y will only do a shallow copy on nested HOH's. In otherword the subhash in $hash{foo} and in $new{foo} will be the same. Thus 
$new{foo}{baz}='new';
print $hash{foo}{baz},"\n"; #prints new

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Taking a deep copy is more complicated, and I wont address it unless you follow up saying that you need to do so.

HTH

--- demerphq
my friends call me, usually because I'm late....

In reply to Re: Copying a hash to another hash problem by demerphq
in thread Copying a hash to another hash problem by Anonymous Monk

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