centos man page for perl::critic::policy::builtinfunctions::prohibitreversesortblock

Query: perl::critic::policy::builtinfunctions::prohibitreversesortblock

OS: centos

Section: 3

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Perl::Critic::Policy::BuiltinFunctions::ProhibitReverseSUserlContributed Perl DPerl::Critic::Policy::BuiltinFunctions::ProhibitReverseSortBlock(3)

NAME
Perl::Critic::Policy::BuiltinFunctions::ProhibitReverseSortBlock - Forbid $b before $a in sort blocks.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway says that it is much clearer to use "reverse" than to flip $a and $b around in a "sort" block. He also suggests that, in newer perls, "reverse" is specifically looked for and optimized, and in the case of a simple reversed string "sort", using "reverse" with a "sort" with no block is faster even in old perls. my @foo = sort { $b cmp $a } @bar; #not ok my @foo = reverse sort @bar; #ok my @foo = sort { $b <=> $a } @bar; #not ok my @foo = reverse sort { $a <=> $b } @bar; #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
AUTHOR
Chris Dolan <cdolan@cpan.org>
COPYRIGHT
Copyright (c) 2006-2011 Chris Dolan. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.3 2014-06-09 Perl::Critic::Policy::BuiltinFunctions::ProhibitReverseSortBlock(3)
Related Man Pages
perl::critic::policy::builtinfunctions::prohibitlvaluesubstr(3) - centos
perl::critic::policy::builtinfunctions::requireblockmap(3) - centos
perl::critic::policy::builtinfunctions::prohibituniversalisa(3) - centos
perl::critic::policy::builtinfunctions::prohibitcomplexmappings(3) - centos
perl::critic::policy::builtinfunctions::requireblockgrep(3pm) - debian
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