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Task/Queue-Definition/Phix/queue-definition.phix

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+sequence queue = {}
+
+procedure push(object what)
+    queue = append(queue,what)
+end procedure
+
+function pop()
+    object what = queue[1]
+    queue = queue[2..$]
+    return what
+end function
+
+function empty()
+    return length(queue)=0
+end function