On January 14, 2000 at 19:47, 5-i's wrote:

> Everyone seems to be considering number solutions when I see a string
> problem:
> 
> $year = substr ($year, -2);

One must consider performance of converting to and from string to
number by perl.  If $year is always treated as a number, then you save
yourself from auto-conversion to string and back.  Also, what happens
when year is only 1 digit (of course, this should not happen in MHonArc
unless an incorrect date is put on a message).

However, in this case, it is not a real issue.  But it is good to
know about it when programming in Perl if performance is a real
concern.

        --ewh

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