How do i print the number 1 unto 100 without using some higher library function ? How do i do it in a loop ? [This questions refers offcourse to mutable state ]

Does i has as type “ref int” ? Can you print the type of i in the loop ?

i is just an int there. One hint that it’s not a ref is that you would have to do !i or i.contents to get the value out of a ref int (in string_of_int i in nojb’s examle). If you specifically wanted to see what it would be like with a mutable int, it might be something like: let i = ref 0 in while …

It is perhaps worth mentioning that ocaml implements tail call elimination, so if you are not going to use a for loop it would be more idiomatic in a functional language like ocaml to use recursive iteration instead of mutable state: let () = let rec loop i = print_endline (string_of_int i) ;…

Basic question on looping

Learning

nojb April 27, 2022, 2:10pm 2

for i = 1 to 100 do
  print_endline (string_of_int i)
done

Cheers,
Nicolas

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Basic question on looping

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