1Sort::MergeSort(3)    User Contributed Perl Documentation   Sort::MergeSort(3)
2
3
4

NAME

6       Sort::MergeSort - merge pre-sorted input streams
7

SYNOPSIS

9        use Sort::MergeSort;
10
11        my $terator = mergesort($comparefunc, @iterators);
12

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.
17
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.
21
22       The $comparefunc takes two arguments.  It does not use the implicit $a
23       & $b that perl sort uses.
24
25       The iterators are treated as file handles so any filehandle or
26       Sort::MergeSort::Iterator will do as input.
27

EXAMPLE

29        use Sort::MergeSort;
30

SEE ALSO

32       Sort::MergeSort::Iterator
33

LICENSE

35       Copyright (C) 2008,2009 David Sharnoff.  Copyright (C) 2013 Google,
36       Inc.
37
38       This package may be used and redistributed under the terms of either
39       the Artistic 2.0 or LGPL 2.1 license.
40
41
42
43perl v5.32.1                      2021-01-27                Sort::MergeSort(3)