It was why they are structs with a bunch of pointers to different things
Perl can have arrays, scalars, hashes, etc with the same name. Therefore, the symbol table entry for a name must be able to hold all of them.
I don't think that too many people actually do that, am I wrong?
It doesn't matter how many do. It just matters if they can. That said, virtually every program uses both $_ and @_. The numerous programs using <> use $ARGV, @ARGV and *ARGV{IO}.
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