randseed(3)



tcl::randomseed(3tcl)  Reflected/virtual channel support tcl::randomseed(3tcl)

______________________________________________________________________________

NAME
       tcl::randomseed - Utilities for random channels

SYNOPSIS
       package require Tcl  8.5

       package require TclOO

       package require tcl::randomseed  ?1?

       ::tcl::randomseed

       ::tcl::combine seed1 seed2

______________________________________________________________________________

DESCRIPTION
       The  tcl::randomseed  package provides a a few utility commands to help
       with the seeding of tcl::chan::random channels.

API
       ::tcl::randomseed
              This command creates returns a list of seed integers suitable as
              seed  argument for random channels. The numbers are derived from
              the process id, current time, and Tcl random number generator.

       ::tcl::combine seed1 seed2
              This command takes to seed lists and combines them into a single
              list  by  XORing  them elementwise, modulo 256. If the lists are
              not of equial length the shorter of the two is  padded  with  0s
              before merging.

BUGS, IDEAS, FEEDBACK
       This  document,  and the package it describes, will undoubtedly contain
       bugs and other problems.  Please report such in the category  virtchan-
       nel  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 out-
       put 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/random,  merge,  random, reflected channel, seed, tip 219, virtual
       channel

CATEGORY
       Channels

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

tcllib                                 1                 tcl::randomseed(3tcl)

Man(1) output converted with man2html
list of all man pages