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Full Discussion: Problem With Pointers
Top Forums Programming Problem With Pointers Post 302452790 by JohnGraham on Monday 13th of September 2010 04:45:48 AM
Old 09-13-2010
Quote:
Originally Posted by majid.merkava
Hi guys.

What is the difference between these:
1. int *a[100];
2. int (*a)[100];
The square array brackets (the '[' and ']') bind more tightly than the pointer operator, so the first declaration is equivalent to "int *(a[100])". Remember to read outwards from the identifier, so in the first declaration, a ("a") is an array ("a[]") of 100 ("a[100]") pointers ("*a[100]") to ints (int *a[100]").

In the second declaration, a is a pointer ("*a") to an array ("(*a)[]") of 100 ("(*a)[100]") ints.
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IO::Digest(3)						User Contributed Perl Documentation					     IO::Digest(3)

NAME
IO::Digest - Calculate digests while reading or writing SYNOPSIS
use IO::Digest; # Get a Digest::MD5 object that takes input while $fh being written or read $iod = IO::Digest->new ($fh, 'MD5'); print $fh "fooo"; print $iod->hexdigest DESCRIPTION
This module allows you to calculate digests while reading or writing file handles. This avoids the case you need to reread the same content to compute the digests after written a file. TEST COVERAGE
----------------------------------- ------ ------ ------ ------ ------ ------ File stmt branch cond sub time total ----------------------------------- ------ ------ ------ ------ ------ ------ blib/lib/IO/Digest.pm 100.0 n/a n/a 100.0 100.0 100.0 Total 100.0 n/a n/a 100.0 100.0 100.0 ----------------------------------- ------ ------ ------ ------ ------ ------ AUTHORS
Chia-liang Kao <clkao@clkao.org> COPYRIGHT
Copyright 2004 by Chia-liang Kao <clkao@clkao.org>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.16.2 2004-09-11 IO::Digest(3)
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