I'm maintaining code that was handling only numerical inputs. Now the input may be a hash reference or a number. How can I filter out the hash reference inputs? My code is sort of like this now:

if ($val =~ /^([\d]+)\'[b]([01]+)$/) 
   {
     $strlen = $1;
     my $binstr = $2;
     #do things ...
   }
else
   { 
    print "Wrong kind of input";
   }

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In reply to function input may be hash ref by Anonymous Monk

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