Re: Handling both string and numeric comparisons


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Re: Handling both string and numeric comparisons

by rob_au (Abbot)

on May 12, 2005 at 11:31 UTC ( #456350=note: print w/replies, xml )

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in reply to Handling both string and numeric comparisons

You can force the numeric context for your string in the following fashion:

if (0 + $param == 5) {

    ...
}
[download]

This will execute and provide the comparison operation that you desire without error or warning. Where $param is a string, the result of the inner operation is zero.

perl -le "print unpack'N', pack'B32', '00000000000000000000001000000000'"

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Re^2: Handling both string and numeric comparisons by Roy Johnson (Monsignor) on May 12, 2005 at 12:01 UTC
If you `use warnings;`, you will get a warning: `Argument "five" isn't numeric in addition (+) at try.pl line 6.` [download] You will not get a warning for doing string comparison on a number, though. Caution: Contents may have been coded under pressure.	[reply] [d/l] [select]

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