Ahem ... 
my %hash = { $_ => (\&{$_})->() } qw(
  INTEGER INTEGER32 OCTET_STRING OBJECT_IDENTIFIER
  IPADDRESS COUNTER COUNTER32 GAUGE GAUGE32 UNSIGNED32
  TIMETICKS OPAQUE COUNTER64
);

[download]
So now you'll have a hash where the keys points to their corresponding constant values.
HTH

_________
broquaint

In reply to Re: How can I reference a hash value with an array by broquaint
in thread How can I reference a hash value with an array by Anonymous Monk

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