>>>>> "Ricardo" == Ricardo SIGNES <[EMAIL PROTECTED]> writes:
Ricardo> Here are some of the reasons you'd need &:
Ricardo> The subroutine has a prototype, and you want to circumvent it.
Ricardo> sub foo($$) { ... }
Ricardo> &foo(1);
Ricardo> You want to pass @_ as the arguments to the called function.
Ricardo> sub foo { &bar; } # passes the arguments to foo to bar
Ricardo> You're calling a subroutine reference.
Ricardo> $foo = sub { ... };
Ricardo> &$foo;
You've named the subroutine the same as a Perl built-in word,
either deliberately or accidentally:
&chomp;
sub chomp { ... };
This is why we still tell beginners to use & in the llama class. I
had a heckuva time with a student in one class who had decided to call
their logging subroutine "log", and then try to call it without an
ampersand. Oops.
--
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