NAME

Perl::Critic::Policy::InputOutput::RequireCheckedOpen - Write my $error = open $fh, $mode, $filename; instead of open $fh, $mode, $filename;.

AFFILIATION

This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

The perl builtin I/O function open returns a false value on failure. That value should always be checked to ensure that the open was successful.

my $error = open( $filehandle, $mode, $filename );                  # ok
open( $filehandle, $mode, $filename ) or die "unable to open: $!";  # ok
open( $filehandle, $mode, $filename );                              # not ok

CONFIGURATION

This Policy is not configurable except for the standard options.

AUTHOR

Andrew Moore <amoore@mooresystems.com>

ACKNOWLEDGMENTS

This policy module is based heavily on policies written by Jeffrey Ryan Thalhammer <thaljef@cpan.org>.

COPYRIGHT

Copyright (c) 2007-2008 Andrew Moore. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module.