Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re: Non-destructive array processing

by runrig (Abbot)
on Jan 20, 2003 at 23:34 UTC ( #228523=note: print w/ replies, xml ) Need Help??


in reply to Non-destructive array processing

Nice trick. I like it as a sort of answer to LISP-like linked lists without having to resort to 2-element array references:

my @array = qw(a b c d); my $r = sub { \@_ }->(@array); my $a = cdr($r); print "arr: @array\n"; print "a: @$a\n"; print "r: @$r\n"; $array[2]="hello"; print "arr: @array\n"; print "a: @$a\n"; print "r: @$r\n"; sub cdr { my $r = shift; my $a = sub { \@_ }->(@$r); shift @$a; $a; }


Comment on Re: Non-destructive array processing
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://228523]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (8)
As of 2015-07-07 00:49 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (86 votes), past polls