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Re^2: Dualvars besides $!

by davido (Archbishop)
on Jan 27, 2014 at 21:32 UTC ( #1072283=note: print w/ replies, xml ) Need Help??

in reply to Re: Dualvars besides $!
in thread Dualvars besides $!

The stringification is cached.

This is a good point. Is this good rule of thumb (bound to be imperfect but close enough)? Anytime an SV with an IV or NV creates a PV representation, that will remain in effect (making it a dualvar) until the container receives a new assignment.


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Re^3: Dualvars besides $!
by ikegami (Pope) on Jan 31, 2014 at 17:35 UTC
    say "!",$x,"!"; doesn't, but "everything else" does.

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