Queue/Definition: Difference between revisions
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(perl correction, before it returned the number of elements) |
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this.dequeue = this.pop; |
this.dequeue = this.pop; |
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}</lang> |
}</lang> |
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=={{header|Lua}}== |
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<lang lua>Queue = {} |
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function Queue.new() |
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return { first = 0, last = -1 } |
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end |
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function Queue.push( queue, value ) |
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queue.last = queue.last + 1 |
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queue[queue.last] = value |
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end |
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function Queue.pop( queue ) |
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if queue.first > queue.last then |
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return nil |
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end |
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local val = queue[queue.first] |
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queue[queue.first] = nil |
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queue.first = queue.first + 1 |
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return val |
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end |
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function Queue.empty( queue ) |
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return queue.first > queue.last |
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end</lang> |
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=={{header|MATLAB}}== |
=={{header|MATLAB}}== |
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