Recursions with inner subs are a very special case! I agree this should be handeld with care, unfortunately reference counting is not the best garbage collection technique...

but using the global namespace for an inner function is somehow dangerous. What if you call an external function within outer, that tries to call a completely different function also called inner()?

Maybe you should better use package to choose another namespace within outer() in combination with this local *name strategie to prevent this trap!

Cheers Rolf

UPDATE: Well OK, at least you get a warning ... 

$\="\n";
sub inner { print "global_inner" }
inner();

sub whatever { inner() }


sub outer {
 local *inner=sub {print "inner_of_outer"};
 inner();
 whatever();
}

outer();
__END__
Subroutine main::inner redefined at c:\perl\push.pm line 9.
global_inner
inner_of_outer
inner_of_outer

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In reply to Re^4: sub fuction inside sub functioin? by LanX
in thread sub fuction inside sub functioin? by deewanagan

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