Just use an ordinary for loop to step through 3 elements at a time: 

for (my $i=0; $i<$#dynval3; $i+=3) {
    my ( $a, $b, $c ) = @dynval3[$i..$i+2];  # shorthand slice idiom i
+nstead of $ary[$i], $ary[$i+1],...
    print "$a|$b|$c\n";
}

[download]

But if you are creating this data structure an easier structure would be an array of arrays which is perls version of a list of lists. 

my @dynval3 = ( 
    [ 'Version', 'obVersion', '0x0204' ],
    [ 'Stat', 'obStat', '0x04b4' ],
    [ 'Mode', 'obMode', '0x0020' ],
    [ 'Regulation', 'obRegulation', '0x0014' ],
    [ 'Scheduler', 'obScheduler', '0x0001' ],
);

for my $ref(@dynval3) {
    # access examples
    print "@$ref\n";
    my ( $a, $b, $c ) = @$ref;
    print "$a $b $c\n";
    print "Field 1 is: ", $ref->[1], "\n\n";
}

[download]

See perlman:perlref

cheers

tachyon

In reply to Re: loop thru 3-element array? by tachyon
in thread loop thru 3-element array? by anadem

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