RosettaCodeData/Task/Queue-Definition/00DESCRIPTION
2016-12-05 22:15:40 +01:00

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{{Data structure}}
[[File:Fifo.gif|frame|right|Illustration of FIFO behavior]]
;Task:
Implement a FIFO queue.
Elements are added at one side and popped from the other in the order of insertion.
Operations:
*   push   (aka ''enqueue'')   - add element
*   pop     (aka ''dequeue'')   - pop first element
*   empty   - return truth value when empty
Errors:
*   handle the error of trying to pop from an empty queue (behavior depends on the language and platform)
;See:
*   [[Queue/Usage]]   for the built-in FIFO or queue of your language or standard library.
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