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SHA3-256: 6a2e1232b55e71d1bb19ac6747da4c3530af8998cd0bbc004dfa4da2158689ca
User & Date: dkf 2018-04-10 20:35:56.932
Context
2018-04-10
20:44
Corrected branch name check-in: 0dcde8a6b3 user: dkf tags: trunk
20:35
Editorial tinkering check-in: 6a2e1232b5 user: dkf tags: trunk
2018-04-09
07:37
TIP #389 voting now in progress check-in: 65cd82c2e4 user: jan.nijtmans tags: trunk
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# TIP 421: A Command for Iterating Over Arrays
	State:		Draft
	Type:		Project
	Tcl-Version:	8.7
	Vote:		Pending
	Post-History:
	Author:		Karl Lehenbauer <[email protected]>
	Author:		Brad Lanam <[email protected]>
	Author:		Donal K. Fellows <[email protected]>
	Created:	28-Nov-2012
        Updated:        2017-10-24
-----

# Abstract

This TIP proposes an efficient mechanism for iterating over the contents of a
large array.












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# TIP 421: A Command for Iterating Over Arrays
	State:		Draft
	Type:		Project
	Tcl-Version:	8.7
	Vote:		Pending
	Post-History:
	Author:		Karl Lehenbauer <[email protected]>
	Author:		Brad Lanam <[email protected]>
	Author:		Donal K. Fellows <[email protected]>
	Created:	28-Nov-2012
	Updated:	24-Oct-2017
-----

# Abstract

This TIP proposes an efficient mechanism for iterating over the contents of a
large array.
︙︙
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the element and the variable _valueVar_ to the content of the element before
evaluating the script _body_. The result will be the empty string \(excepting
errors, **return**, etc.\) and any contained **break** and **continue**
will have their normal interpretation as loop control operations.

# Implementation

  Branch: bll-array-for

  Code is also available within a comment at:
     https://github.com/flightaware/Tcl-bounties/issues/12

  The implementation is no faster then using **array names** or
  **array get**, but uses much less memory.

# References

  https://github.com/flightaware/Tcl-bounties/issues/12
  https://github.com/flightaware/Tcl-bounties/issues/27

# Copyright

This document has been placed in the public domain.









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the element and the variable _valueVar_ to the content of the element before
evaluating the script _body_. The result will be the empty string \(excepting
errors, **return**, etc.\) and any contained **break** and **continue**
will have their normal interpretation as loop control operations.

# Implementation

Branch: `bll-array-for`


Code is also available [here](https://github.com/flightaware/Tcl-bounties/issues/12) within a comment.

The implementation is no faster then using **array names** or
**array get**, but uses much less memory.

# References

[Bounty #12](https://github.com/flightaware/Tcl-bounties/issues/12),
[Bounty #27](https://github.com/flightaware/Tcl-bounties/issues/27)

# Copyright

This document has been placed in the public domain.