Loops Is the loop entered from the top? Is initialization code directly before the loop? If the loop is an event loop, is it constructed cleanly rather than using a kludge such as for i:= 1 to 9999? If the loop is a C for loop, is the loop header reserved for loop-control code? Does the loop use begin and end or their equivalents to prevent problems arising from improper modifications? Does the loop have something in it? Is it not empty? Are housekeeping chores grouped, either at the beginning or the end of the loop? Does the loop perform one and only one function, like a well-defined routine? Does the loop end under all possible conditions? Is the loop's termination condition obvious? If the loop is a for loop, does the code inside it avoid monkeying with the loop index? Is a variable used to save important loop-index values rather than using the loop index outside the loop? Does the loop use safety counters, if you have a safety-counter standard? If the loop is nested, does it use loop names for clarity? Is the loop index an ordinal type or enumerated type? Does the loop index have a meaningful name? Does the loop avoid index cross talk? Is the loop short enough to view all at once? Is the loop nested to three levels or less? If the loop is long, is it especially clear?