List.mapi is really a fairly trivial List.fold_left
List.mapi is really a fairly trivial List.fold_left

koushikcgit/xenopsd,johnelse/xenopsd,thomassa/xenopsd,johnelse/xenopsd,simonjbeaumont/xenopsd,djs55/xenopsd,djs55/xenopsd-previous,cheng--zhang/xenopsd,cheng--zhang/xenopsd,thomassa/xenopsd,euanh/xenopsd,djs55/xenopsd-previous,simonjbeaumont/xenopsd,djs55/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd,koushikcgit/xenopsd,euanh/xenopsd,simonjbeaumont/xenopsd,johnelse/xenopsd,koushikcgit/xenopsd,thomassa/xenopsd,euanh/xenopsd,djs55/xenopsd-previous