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Perl redo Statement
The redo command restarts the loop block without evaluating the conditional again. You can provide a LABEL with redo statement where LABEL is the label for a loop. A redo statement can be used inside a nested loop where it will be applicable to the nearest loop if a LABEL is not specified.
If there is any continue block on the loop, then it will not be executed before evaluating the condition.
Syntax
The syntax for a redo statement is as follows −
redo [LABEL]
Flow Diagram
Example
The following program shows the usage of redo statement −
#/usr/local/bin/perl
$a = 0;
while($a < 10) {
if( $a == 5 ) {
$a = $a + 1;
redo;
}
print "Value of a = $a\n";
} continue {
$a = $a + 1;
}
This would produce the following result −
Value of a = 0 Value of a = 1 Value of a = 2 Value of a = 3 Value of a = 4 Value of a = 6 Value of a = 7 Value of a = 8 Value of a = 9
perl_loops.htm
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