Boolean logic is your friend. 
return undef unless
   defined($name = askFor(title => 'Name:'))
   and defined($cigs = askFor(title => 'Cigarettes:'));

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That return undef should probably be a plain return, unless Tk is as fastidious about return values as GtkPerl.

Makeshifts last the longest.

In reply to Re^2: Double your return!!!! by Aristotle
in thread Double your return!!!! by bsb

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