in reply to Re^2: Q: NaN again
in thread Q: NaN again

Then, as you say, your problem is with filtering user input. When you recieve input from a user, you need to check that it is a valid number and reject (or ignore) it if it isn't.

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

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Re^4: Q: NaN again
by kai (Initiate) on Oct 19, 2006 at 12:33 UTC
    I have a huge amount of old code. About ten megabytes. I can't check all. So, all I need to know - how to disable NaN autosupport in perl 5.8.4+ for amd64 :-)