Paul wrote: > Hi, all. > I was reading the perlsub docs and hit this speedbump: > > > NOTE: The behaviour of a "my" statement modified with a > statement modifier conditional or loop construct (e.g. "my > $x if ...") is undefined. The value of the "my" variable > may be "undef", any previously assigned value, or possibly > anything else. Don't rely on it. Future versions of perl > might do something different from the version of perl you > try it out on. Here be dragons. > > I failed to parse. > Could someone elaborate that, please? :)
a statement modifier is any of qw( if unless while until foreach ) after an unmodified (ordinary) statement. A 'my' statement is something like my $x = 1; and what this warning is saying is don't use any of the modifiers on it, as its behaviour is undefined (not 'undef'). Stuff like this: my $x = 1 if 0 == 1; leaves you not knowing anything about the value in $x. HTH, Rob -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]