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Difference between revisions of "Perl/Basics/Boolean Logic/Bitwise Manipulations"

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Perl's bitwise manipulations cover the syntax for performing '''[[Bitwise Math|bitwise math]]''' on variables.
 
Perl's bitwise manipulations cover the syntax for performing '''[[Bitwise Math|bitwise math]]''' on variables.
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====[[Bitwise_Math#AND|AND]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/AND}}
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====[[Bitwise_Math#NOT|NOT]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/NOT}}
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====[[Bitwise_Math#OR|OR]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/OR}}
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====[[Bitwise_Math#XOR|XOR]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/XOR}}
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====[[Bitwise_Math#Logical_Shifts|Bit Shifting]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/Bit_Shifting}}
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====[[Bitwise_Math#Circular_Shift_or_Bit_Rotation|Bit Rotation]]====
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{{:Perl/Basics/Boolean Logic/Bitwise_Manipulations/Bit_Rotation}}

Latest revision as of 01:31, 19 July 2012

Perl's bitwise manipulations cover the syntax for performing bitwise math on variables.

AND

  • & - The AND operator.
 
my $num = 10;
$num = $num & 25;
print $num . "\n";
 

NOT

  • ~ - The NOT operator
 
my $num = 10;
$num = ~$num;
print $num . "\n";
 

OR

  • | - The OR operator
 
my $num = 10;
$num = $num | 25;
print $num . "\n";
 

XOR

  • ^ - The xor (exclusive or) operator
 
my $num = 10;
$num = $num ^ 25;
print $num . "\n";
 

Bit Shifting

  • << - The shift left operator
  • >> - The shift right operator

<syntaxhighlight lang="perl">my $num = 10; $num = $num << 2; #Shift left two bits $num = $num >> 2; #Shift right two bits print $num . "\n"; </syntaxhighlight>

Bit Rotation

Perl bit rotation requires the Bit::ShiftReg package from CPAN. More information available there.

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