NAME

       tcl::chan::null - Null channel

SYNOPSIS

       package require Tcl  8.5

       package require TclOO

       package require tcl::chan::events  ?1?

       package require tcl::chan::null  ?1?

       ::tcl::chan::null

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DESCRIPTION

       The  tcl::chan::null  package  provides  a command creating null channels, i.e. write-only channels which
       immediately forget whatever is written to them. This is equivalent to the null channels provided  by  the
       package  Memchan,  except  that  this is written in pure Tcl, not C. On the other hand, Memchan is usable
       with Tcl 8.4 and before, whereas this package requires Tcl 8.5 or higher, and TclOO.

       Packages related to this are tcl::chan::zero and tcl::chan::nullzero.

       The internal TclOO class implementing the  channel  handler  is  a  sub-class  of  the  tcl::chan::events
       framework.

API

       ::tcl::chan::null
              This command creates a new null channel and returns its handle.

BUGS, IDEAS, FEEDBACK

       This  document,  and  the package it describes, will undoubtedly contain bugs and other problems.  Please
       report such in the category virtchannel of the  Tcllib  Trackers  [http://core.tcl.tk/tcllib/reportlist].
       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.

KEYWORDS

       /dev/null, null, reflected channel, tip 219, virtual channel

CATEGORY

       Channels

COPYRIGHT

       Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>