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Re: confused: string and number comparison

by wwe (Friar)
on Mar 23, 2011 at 15:07 UTC ( #895011=note: print w/ replies, xml ) Need Help??

in reply to confused: string and number comparison

Thank you for your answers. As lostjimmy and moritz already told the problem could be solved easily by doing string comparison. I think my problem was that perl turns a string which doesn't represent a number to zero for numerical comparison as johnqq stated.

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Re^2: confused: string and number comparison
by dsheroh (Parson) on Mar 24, 2011 at 10:35 UTC
    Note that this is not unique to Perl. Pretty much every language since C (and probably going back even further) will treat non-numeric strings as 0 when asked to treat them as numbers. Your problem is that you explicitly asked Perl to do a numeric comparison (by using ==) when that wasn't what you actually wanted.

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