https://github.com/FujiiMaika/fscd21.git
Revision ea403bcbbae3477540fd253d060af773fd16b72c authored by Maika Fujii on 24 June 2021, 05:44:21 UTC, committed by GitHub on 24 June 2021, 05:44:21 UTC
1 parent d51eccc
Tip revision: ea403bcbbae3477540fd253d060af773fd16b72c authored by Maika Fujii on 24 June 2021, 05:44:21 UTC
Update README.md
Update README.md
Tip revision: ea403bc
env.ml
type 'a t = 'a list
let empty = []
(* exceptions *)
exception UnboundVariable
(* offset : string -> xs -> int *)
let offset x xs =
let rec loop xs n = match xs with
[] -> raise UnboundVariable
| first :: rest -> if x = first then n else loop rest (n + 1)
in
loop xs 0
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