1-- example of for with generator functions 2 3function generatefib (n) 4 return coroutine.wrap(function () 5 local a,b = 1, 1 6 while a <= n do 7 coroutine.yield(a) 8 a, b = b, a+b 9 end 10 end) 11end 12 13for i in generatefib(1000) do print(i) end 14