#!/usr/bin/ruby

#
## https://rosettacode.org/wiki/Singly-linked_list/Element_insertion
#

func insert_after(a,b) {
    b{:next} = a{:next};
    a{:next} = b;
}
 
var B = :(
    data => 3,
    next => nil,    # not a circular list
);
var A = :(
    data => 1,
    next => B,
);
var C = :(
    data => 2,
);
 
insert_after(A, C);

say A;
say B;
say C;
