[Chicago-talk] Odd HoH bug/problem
Shawn Carroll
shawn.c.carroll at gmail.com
Tue Sep 11 11:36:49 PDT 2012
I hit send to soon...
On Tue, Sep 11, 2012 at 1:33 PM, Shawn Carroll
<shawn.c.carroll at gmail.com> wrote:
> Let me preface this by saying that I have not been able to reproduce
> this problem in a smaller program and I understand that this makes it
> less useful for identifying the root cause.
>
> In my program I create a HoHoH and need to step through in a final
> sub. As I've done many times in the past I use a while block and use
> each to assign the key & value to loop variables.
>
> while( my ($id, $types) = each %data )
> {
> say "$id => $types";
> while ( my ($type, $data) = each %{ $types })
> {
say $type
# processData
}
}
The first say confirms that every $types is a hash but the second
while loop doesn't process every $types. If I replace the second
while with a foreach my $type (keys %{$types}) loop everything works
as expected.
Am I missing something here? I am confused.
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