Why does the second if-clause even execute?

Question

I have a do while loop in my program, who\'s condition to continue keeps giving me off-by-one errors and I can\'t figure out why. It looks like this:

Answer 1

Extending the answer High Performance Mark, here is one way to rewrite the loop:

ii_loop: do

  if (ii .gt. nri) exit ii_loop
  if (ed(ii) .gt. e1) exit ii_loop

  ! do some stuff

  ii = ii + 1

end do ii_loop