Hi SerZKO!

Your hash-key does not need to be a static string, but could be constructed on the fly with a variable containing a counter. Check the following example 

my %e;
my $max = 4;
foreach my $nr  (1..$max)
{
    $e{"uid_$nr"} = $nr;
}

[download]
For your problem, you may either add a the number of available UIDs in your data-structure (and use it like the $max in the example above), or you might check with exists whether a specific UID-entry is present in your hash (e.g. if (exists($e{"MEX$nr"}) { ... })

HTH, Rata

In reply to Re: Manipulating data structure by Ratazong
in thread Manipulating data structure by SerZKO

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