You might want to check out merlyn's is_numeric function 
sub is_numeric {
  ($_[0] & ~ $_[0]) eq "0";
}

[download]
Which tests whether a scalar is a numeric value or a string value e.g 42 vs "42".
HTH

_________
broquaint

In reply to Re: Test for numeric by broquaint
in thread Test for numeric by John M. Dlugosz

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