testdir/t.getval - platform/external/one-true-awk - Git at Google

 { # tests various resetting of $1, $0, etc.

 	$1 = length($1) + length($2)
 	print $0 + 0

 }
	{ # tests various resetting of $1, $0, etc.

	$1 = length($1) + length($2)
	print $0 + 0

	}