27 lines
464 B
OCaml
Executable File
27 lines
464 B
OCaml
Executable File
open General
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external ( + ) : int -> int -> int = "%addint"
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external ( - ) : int -> int -> int = "%subint"
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external ( * ) : int -> int -> int = "%mulint"
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external ( / ) : int -> int -> int = "%divint"
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external ( mod ) : int -> int -> int = "%modint"
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external of_char : char -> int = "%identity"
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external int_of_string : string -> int = "caml_int_of_string"
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let of_string s =
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try
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Some (int_of_string s)
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with
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| Failure _ -> None
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