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46 lines
1.0 KiB
OCaml
46 lines
1.0 KiB
OCaml
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(* This type should be used for all charges in the program (electrons, nuclei,...). *)
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(* [[file:~/QCaml/common/charge.org::*Type][Type:2]] *)
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type t = float
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(* Type:2 ends here *)
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(* [[file:~/QCaml/common/charge.org::*Conversions][Conversions:2]] *)
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external of_float : float -> t = "%identity"
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external to_float : t -> float = "%identity"
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let of_int = float_of_int
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let to_int = int_of_float
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let of_string = float_of_string
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let to_string x =
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if x > 0. then
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Printf.sprintf "+%f" x
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else if x < 0. then
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Printf.sprintf "%f" x
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else
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"0.0"
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(* Conversions:2 ends here *)
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(* [[file:~/QCaml/common/charge.org::*Simple operations][Simple operations:2]] *)
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let gen_op op =
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fun a b ->
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op (to_float a) (to_float b)
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|> of_float
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let ( + ) = gen_op ( +. )
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let ( - ) = gen_op ( -. )
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let ( * ) = gen_op ( *. )
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let ( / ) = gen_op ( /. )
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let is_null t = t == 0.
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(* Simple operations:2 ends here *)
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(* [[file:~/QCaml/common/charge.org::*Printers][Printers:2]] *)
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let pp ppf x =
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Format.fprintf ppf "@[%s@]" (to_string x)
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(* Printers:2 ends here *)
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