Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Re: TIMTOWTDI, synergy

by John M. Dlugosz (Monsignor)
on Jun 02, 2009 at 19:02 UTC ( [id://767734]=note: print w/replies, xml ) Need Help??


in reply to TIMTOWTDI, synergy
in thread How A Function Becomes Higher Order

Let me continue by pointing out that in Perl 6 you would not write max as a list operator or function. Rather, write it as an infix (2-argument) function, and the system will automatically generate the matching reduction operator. Or, write the reduction operator yourself if that's more efficient, but use the reduction syntax:
sub infix:<max> (::Type $left, Type $right --> Type) { return $left after $right ?? $left !! $right; } sub prefix:<[max]> (::Type *$first, Type *@rest --> Type) { ... }
That leaves off the details of how to make it a chaining operator (I guess max chains through normal association) and declaring its level of precedence and associativity, etc.

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://767734]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others perusing the Monastery: (3)
As of 2025-07-17 16:04 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?
    erzuuliAnonymous Monks are no longer allowed to use Super Search, due to an excessive use of this resource by robots.