15 lines
538 B
Text
15 lines
538 B
Text
; Create and populate a FIFO:
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q: make fifo []
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q/push 'a
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q/push 2
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q/push $12.34 ; Did I mention that REBOL has 'money!' datatype?
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q/push [Athos Porthos Aramis] ; List elements pushed on one by one.
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q/push [[Huey Dewey Lewey]] ; This list is preserved as a list.
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; Dump it out, with narrative:
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print rejoin ["Queue is " either q/empty [""]["not "] "empty."]
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while [not q/empty][print [" " q/pop]]
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print rejoin ["Queue is " either q/empty [""]["not "] "empty."]
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print ["Trying to pop an empty queue yields:" q/pop]
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