Un tipo primitivo mutabile: l’array

# let a = [| 1; 2; 3 |];;

val a : int array = [|1; 2; 3|]

# let b = Array.make 12 1;;

val b : int array = [|1; 1; 1; 1; 1; 1; 1; 1; 1; 1; 1; 1|]

# Array.length b;;

- : int = 12

# Array.get a 0;;

- : int = 1

# Array.get b 12;;

Uncaught exception: Invalid_argument("Array.get")

# Array.set b 3 131;;

- : unit = ()

# b;;

- : int array = [|1; 1; 1; 131; 1; 1; 1; 1; 1; 1; 1; 1|]

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