Re^2: "next" in Parallel::ForkManager, and subroutines

[thargas]

Hmm. The docs for next include:

"next" cannot be used to exit a block which returns a value
such as "eval {}", "sub {}" or "do {}", and should not be used
to exit a grep() or map() operation.

Doesn't sound supported to me.

[tobyink]

I think this is referring to the fact that you can't use next to "just" jump out of a sub (or do or eval) - it needs to jump out of another block (which does not return a value) at a higher level. Compare this:

sub foo () { next }
foo

with this:

sub foo () { next }
foo for 1

The first dies with Can't "next" outside a loop block; the second runs successfully, but will warn when warnings are enabled.