1Sort::MergeSort(3)    User Contributed Perl Documentation   Sort::MergeSort(3)
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NAME

6       Sort::MergeSort - merge pre-sorted input streams
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SYNOPSIS

9        use Sort::MergeSort;
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11        my $terator = mergesort($comparefunc, @iterators);
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DESCRIPTION

14       Given a comparison function and a bunch of iterators that produce data
15       that is already sorted, "mergesort()" will provide an iterator that
16       produces sorted and merged data from all of the input iterators.
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18       Sort::MergeSort also works with filehandles.   It doesn't care.   If
19       it's only input is a filehandle, it will return a filehandle.  In all
20       other situations it will return an iterator.
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22       The $comparefunc takes two arguments.  It does not use the implicit $a
23       & $b that perl sort uses.
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25       The iterators are treated as file handles so any filehandle or
26       Sort::MergeSort::Iterator will do as input.
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EXAMPLE

29        use Sort::MergeSort;
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SEE ALSO

32       Sort::MergeSort::Iterator
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LICENSE

35       Copyright (C) 2008,2009 David Sharnoff.  Copyright (C) 2013 Google,
36       Inc.
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38       This package may be used and redistributed under the terms of either
39       the Artistic 2.0 or LGPL 2.1 license.
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43perl v5.32.0                      2020-07-28                Sort::MergeSort(3)