78 lines
1.2 KiB
OCaml
78 lines
1.2 KiB
OCaml
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type bool =
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| True
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| False
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val negb : bool -> bool
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type nat =
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| O
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| S of nat
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type 'a option =
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| Some of 'a
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| None
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type sumbool =
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| Left
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| Right
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val add : nat -> nat -> nat
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val mul : nat -> nat -> nat
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val sub : nat -> nat -> nat
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val eqb : nat -> nat -> bool
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val leb : nat -> nat -> bool
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val bool_dec : bool -> bool -> sumbool
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type ascii =
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| Ascii of bool * bool * bool * bool * bool * bool * bool * bool
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val ascii_dec : ascii -> ascii -> sumbool
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type string =
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| EmptyString
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| String of ascii * string
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val string_dec : string -> string -> sumbool
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val eqb_string : string -> string -> bool
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type 'a total_map = string -> 'a
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val t_update : 'a1 total_map -> string -> 'a1 -> string -> 'a1
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type state = nat total_map
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type aexp =
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| ANum of nat
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| AId of string
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| APlus of aexp * aexp
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| AMinus of aexp * aexp
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| AMult of aexp * aexp
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type bexp =
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| BTrue
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| BFalse
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| BEq of aexp * aexp
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| BLe of aexp * aexp
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| BNot of bexp
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| BAnd of bexp * bexp
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val aeval : state -> aexp -> nat
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val beval : state -> bexp -> bool
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type com =
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| CSkip
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| CAss of string * aexp
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| CSeq of com * com
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| CIf of bexp * com * com
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| CWhile of bexp * com
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val ceval_step : state -> com -> nat -> state option
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