octostring

Interprets *ostring* as an octal string and returns the
equivalent decimal value.
(If *ostring* happens to start off with `0x`

,
it is interpreted as a hex
string instead.) The following will handle decimal, octal, and hex in
the standard notation:

If$val = oct $val if $val =~ /^0/;

`$_`

.
To perform the inverse function on octal numbers,
use:
$oct_string = sprintf "%lo", $number;