Kevin Ryde > Math-NumSeq > Math::NumSeq::Base::IterateIth

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NAME ^

Math::NumSeq::Base::IterateIth -- iterate by calling ith() successively

SYNOPSIS ^

 package MyNumSeqSubclass;
 use Math::NumSeq;
 use Math::NumSeq::Base::IterateIth;
 @ISA = ('Math::NumSeq::Base::IterateIth',
         'Math::NumSeq');
 sub ith {
   my ($self, $i) = @_;
   return something($i);
 }

DESCRIPTION ^

This is a multi-inheritance mix-in providing the following methods

    rewind()
    next()
    seek_to_i()

They iterate simply by calling ith() to get each successive value, starting from i_start().

This is a handy way to implement the iterating methods for a NumSeq if there's nothing special that next() can do beyond a full ith() calculation.

If ith() returns undef then that's taken to be the end of the sequence and next() returns no values.

SEE ALSO ^

Math::NumSeq

HOME PAGE ^

http://user42.tuxfamily.org/math-numseq/index.html

LICENSE ^

Copyright 2011, 2012, 2013, 2014 Kevin Ryde

Math-NumSeq is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

Math-NumSeq is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Math-NumSeq. If not, see <http://www.gnu.org/licenses/>.

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