1IO::Digest(3) User Contributed Perl Documentation IO::Digest(3)
2
3
4
6 IO::Digest - Calculate digests while reading or writing
7
9 use IO::Digest;
10
11 # Get a Digest::MD5 object that takes input while $fh being written or read
12 my $fh;
13 my $iod = IO::Digest->new ($fh, 'MD5');
14
15 print $fh "fooo";
16 print $iod->hexdigest
17
19 This module allows you to calculate digests while reading or writing
20 file handles. This avoids the case you need to reread the same content
21 to compute the digests after written a file.
22
24 ----------------------------------- ------ ------ ------ ------ ------ ------
25 File stmt branch cond sub time total
26 ----------------------------------- ------ ------ ------ ------ ------ ------
27 blib/lib/IO/Digest.pm 100.0 n/a n/a 100.0 100.0 100.0
28 Total 100.0 n/a n/a 100.0 100.0 100.0
29 ----------------------------------- ------ ------ ------ ------ ------ ------
30
32 Chia-liang Kao <clkao@clkao.org>
33
35 Copyright 2004 by Chia-liang Kao <clkao@clkao.org>.
36
37 This program is free software; you can redistribute it and/or modify it
38 under the same terms as Perl itself.
39
40 See <http://www.perl.com/perl/misc/Artistic.html>
41
42
43
44perl v5.30.1 2020-01-30 IO::Digest(3)