tasks a-s

Task/Queue-Definition/Ruby/queue-definition-2.rb

@@ -0,0 +1,16 @@
+f = FIFO.new
+f.empty?                           # => true
+f.pop                              # => nil
+f.pop(2)                           # => []
+f.push(14)                         # => FIFO[14]
+f << "foo" << [1,2,3]              # => FIFO[14, "foo", [1, 2, 3]]
+f.enqueue("bar", Hash.new, "baz")
+# => FIFO[14, "foo", [1, 2, 3], "bar", {}, "baz"]
+f.size                             # => 6
+f.pop(3)                           # => [14, "foo", [1, 2, 3]]
+f.dequeue                          # => "bar"
+f.empty?                           # => false
+g = FIFO[:a, :b, :c]
+g.pop(2)                           # => [:a, :b]
+g.pop(2)                           # => [:c]
+g.pop(2)                           # => []