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CentOS 7.0 - man page for perl::critic::policy::controlstructures::prohibituntilblocks (centos section 3)

Perl::Critic::Policy::ControlStUsePerl::Critic::Policy::ControlStructures::ProhibitUntilBlocks(3)

NAME
       Perl::Critic::Policy::ControlStructures::ProhibitUntilBlocks - Write "while(! $condition)"
       instead of "until($condition)".

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

DESCRIPTION
       Conway discourages using "until" because it leads to double-negatives that are hard to
       understand.  Instead, reverse the logic and use "while".

	   until($condition)	 { do_something() } #not ok
	   until(! $no_flag)	 { do_something() } #really bad
	   while( ! $condition)  { do_something() } #ok

       This Policy only covers the block-form of "until".  For the postfix variety, see
       "ProhibitPostfixControls".

CONFIGURATION
       This Policy is not configurable except for the standard options.

SEE ALSO
       Perl::Critic::Policy::ControlStructures::ProhibitPostfixControls

AUTHOR
       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT
       Copyright (c) 2005-2011 Imaginative Software Systems.  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.

perl v5.16.3			  Perl::Critic::Policy::ControlStructures::ProhibitUntilBlocks(3)


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