length(PriorityQueue) -- returns the number of elements in the queue

Synopsis

• Function: length

• Usage:

  n = length Q

• Inputs:
  • Q, an instance of the type PriorityQueue
• Outputs:
  • n, an integer

Description

i1 : Q = priorityQueue {1,2,3}

o1 = PriorityQueue{...4...}

o1 : PriorityQueue

i2 : length Q

o2 = 3

i3 : insert(Q,0)

o3 = PriorityQueue{...4...}

o3 : PriorityQueue

i4 : length Q

o4 = 4