Because the range operator (integer iterator) is not affected by bigint. You can also do:

use strict;
use warnings;
use bigint;

my $answer = 0;
for my $i ( map 0+$_,1 .. 999 ) {
  print "$i: $answer\n";
  $answer += $i ** $i;
}

$answer %= 10 ** 10;

print "$answer\n";

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In reply to Re: c-style for loop versus list for loop, and bigint by BrowserUk
in thread c-style for loop versus list for loop, and bigint by AR

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