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.IX Title "Perl::Critic::Policy::Variables::ProhibitAugmentedAssignmentInDeclaration 3pm"
.TH Perl::Critic::Policy::Variables::ProhibitAugmentedAssignmentInDeclaration 3pm "2020-05-17" "perl v5.30.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Perl::Critic::Policy::Variables::ProhibitAugmentedAssignmentInDeclaration \- Do not write " my $foo .= \*(Aqbar\*(Aq; ".
.SH "AFFILIATION"
.IX Header "AFFILIATION"
This Policy is part of the core Perl::Critic
distribution.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Variable declarations that also do initialization with '=' are common.
Perl also allows you to use operators like '.=', '+=', etc., but it
it is more clear to not do so.
.PP
.Vb 5
\&    my $foo .= \*(Aqbar\*(Aq;              # same as my $foo = \*(Aqbar\*(Aq;
\&    our $foo *= 2;                 # same as our $foo = 0;
\&    my ( $foo, $bar ) += ( 1, 2 ); # same as my ( $foo, $bar ) = ( undef, 2 );
\&    local $Carp::CarpLevel += 1;   # same as local $Carp::CarpLevel = 1;
\&    state $foo += 2;               # adds 2 every time it\*(Aqs encountered
.Ve
.PP
Such constructs are usually the result of botched cut-and-paste, and often are
bugs. Some produce warnings.
.SH "CONFIGURATION"
.IX Header "CONFIGURATION"
This Policy is not configurable except for the standard options.
.SH "AUTHOR"
.IX Header "AUTHOR"
Mike O'Regan
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 2011 Mike O'Regan.  All rights reserved.
.PP
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 \s-1LICENSE\s0 file included with this module.