1Math::NumSeq::Base::IteUrsaetrePCroendt(r3i)buted Perl DMoactuhm:e:nNtuamtSieoqn::Base::IteratePred(3)
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NAME

6       Math::NumSeq::Base::IteratePred -- iterate by searching with pred()
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SYNOPSIS

9        package MyNumSeqSubclass;
10        use Math::NumSeq;
11        use Math::NumSeq::Base::IteratePred;
12        @ISA = ('Math::NumSeq::Base::IteratePred',
13                'Math::NumSeq');
14        sub ith {
15          my ($self, $i) = @_;
16          return something($i);
17        }
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DESCRIPTION

20       This is a multi-inheritance mix-in providing the following methods
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22           rewind()   # return to $self->i_start() and $self->values_min()
23           next()     # search using $self->pred()
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25           characteristic_increasing()    # always true
26           characteristic_integer()       # always true
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28       "next()" iterates by searching for values satisfying
29       "$self->pred($value)", starting at "values_min()" and stepping by 1
30       each time.
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32       This is a handy way to implement the iterating methods for a "NumSeq"
33       if there's no easy way to step or have random access to values, only a
34       test of a condition.
35
36       The current implementation is designed for infinite sequences, it
37       doesn't check for a "values_max()" limit.
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39       The two "characteristic" methods mean that calls
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41           $self->characteristic('increasing')
42           $self->characteristic('integer')
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44       are both true.  "Increasing" is since "next()" always searches upwards.
45       "Integer" currently presumes that the starting "values_min()" is an
46       integer.
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SEE ALSO

49       Math::NumSeq
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HOME PAGE

52       <http://user42.tuxfamily.org/math-numseq/index.html>
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LICENSE

55       Copyright 2011, 2012, 2013, 2014, 2016, 2019, 2020 Kevin Ryde
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57       Math-NumSeq is free software; you can redistribute it and/or modify it
58       under the terms of the GNU General Public License as published by the
59       Free Software Foundation; either version 3, or (at your option) any
60       later version.
61
62       Math-NumSeq is distributed in the hope that it will be useful, but
63       WITHOUT ANY WARRANTY; without even the implied warranty of
64       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
65       General Public License for more details.
66
67       You should have received a copy of the GNU General Public License along
68       with Math-NumSeq.  If not, see <http://www.gnu.org/licenses/>.
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72perl v5.34.1                      2022-06-06Math::NumSeq::Base::IteratePred(3)
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