GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  PERL::CRITIC::POLICY::BUILTINFUNCTIONS::PROHIBITLVALUESUBSTR (3)

.ds Aq ’

NAME

Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr - Use 4-argument "substr" instead of writing "substr($foo, 2, 6) = $bar".

CONTENTS

AFFILIATION

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

DESCRIPTION

Conway discourages the use of substr() as an lvalue, instead recommending that the 4-argument version of substr() be used instead.



    substr($something, 1, 2) = $newvalue;     # not ok
    substr($something, 1, 2, $newvalue);      # ok



The four-argument form of substr() was introduced in Perl 5.005. This policy does not report violations on code which explicitly specifies an earlier version of Perl (e.g. use 5.004;).

CONFIGURATION

This Policy is not configurable except for the standard options.

SEE ALSO

substr in perlfunc (or perldoc -f substr).

4th argument to substr in perl5005delta

AUTHOR

Graham TerMarsch <graham@howlingfrog.com>

COPYRIGHT

Copyright (c) 2005-2011 Graham TerMarsch. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 PERL::CRITIC::POLICY::BUILTINFUNCTIONS::PROHIBITLVALUESUBSTR (3) 2016-04-03

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.