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[Perl 6] constant function without prototypeby John M. Dlugosz (Monsignor) |
on May 02, 2008 at 04:03 UTC ( [id://684086]=note: print w/replies, xml ) | Need Help?? |
I'm on a Perl 6 kick right now, and reading this thread made me reflect on these features as described in the Synopses. There is a lot "fixed" that I don't even think about much. In Perl 6, you can declare a constant simply by using constant instead of my. And you can declare one with or without a sigil. So you could have: constant π = 2*atan2(1,0); constant $pi ::= π;And either 2*$pi*$r or 2*π*$r are natural. Thing is, constant is lexical, like a read-only version of my. So how do you export one? You could also declare subs that act like unprototyped Perl 5 subs, or declare to take no arguments, or you can declare a 'term' directly. —John
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