Name

Math::Permute::List - Generate all permutations of a list.

Synopsis

 use Math::Permute::List;

 permute {say "@_"} qw(a b c);

 #  a b c
 #  a c b
 #  b a c
 #  c a b
 #  b c a
 #  c b a

Description

Generate and process all the permutations of a list using the standard Perl metaphor.

permute() returns the number of permutations in both scalar and array context.

permute() is easy to use and fast. It is written in 100% Pure Perl.

Please note that the order in which the permutations are generated is not guaranteed, so please do not rely on it.

Export

The permute() function is exported.

Installation

Standard Module::Build process for building and installing modules:

  perl Build.PL
  ./Build
  ./Build test
  ./Build install

Or, if you're on a platform (like DOS or Windows) that doesn't require the "./" notation, you can do this:

  perl Build.PL
  Build
  Build test
  Build install

Author

PhilipRBrenan@appaapps.com

http://www.appaapps.com

Acknowledgements

With considerable, cogent and unfailing help from Philipp Rumpf for which I am indebted.

http://www.appaapps.com

See Also

Math::Cartesian::Product

Math::Disarrange::List

Math::Subsets::List

Algorithm::Permute

Algorithm::FastPermute

Copyright

Copyright (c) 2009 Philip R Brenan.

This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.