Tcl Library Source Code

EuroTcl/OpenACS 11 - 12 JULY 2024, VIENNA

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struct::queue - Create and manipulate queue objects

Table Of Contents


package require Tcl 8.5 9
package require struct::queue ?1.4.6?

queueName option ?arg arg ...?
queueName clear
queueName destroy
queueName get ?count?
queueName peek ?count?
queueName put item ?item ...?
queueName unget item
queueName size


The ::struct namespace contains a commands for processing finite queues.

It exports a single command, ::struct::queue. All functionality provided here can be reached through a subcommand of this command.

Note: As of version 1.4.1 of this package a critcl based C implementation is available. This implementation however requires Tcl 8.4 to run.

The ::struct::queue command creates a new queue object with an associated global Tcl command whose name is queueName. This command may be used to invoke various operations on the queue. It has the following general form:

Bugs, Ideas, Feedback

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category struct :: queue of the Tcllib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide unified diffs, i.e the output of diff -u.

Note further that attachments are strongly preferred over inlined patches. Attachments can be made by going to the Edit form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar.


graph, list, matrix, pool, prioqueue, record, set, skiplist, stack, tree


Data structures