mirror of
https://gitlab.com/scemama/QCaml.git
synced 2024-06-26 15:12:05 +02:00
96 lines
2.0 KiB
Org Mode
96 lines
2.0 KiB
Org Mode
#+begin_src elisp tangle: no :results none :exports none
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(setq pwd (file-name-directory buffer-file-name))
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(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
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(setq lib (concat pwd "lib/"))
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(setq testdir (concat pwd "test/"))
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(setq mli (concat lib name ".mli"))
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(setq ml (concat lib name ".ml"))
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(setq test-ml (concat testdir name ".ml"))
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(org-babel-tangle)
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#+end_src
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* Charge
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:PROPERTIES:
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:header-args: :noweb yes :comments both
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:END:
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** Type
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#+begin_src ocaml :tangle (eval mli)
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type t
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#+end_src
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This type should be used for all charges in the program (electrons, nuclei,...).
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#+begin_src ocaml :tangle (eval ml) :exports none
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type t = float
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#+end_src
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** Conversions
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#+begin_src ocaml :tangle (eval mli)
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val of_float : float -> t
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val to_float : t -> float
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val of_int : int -> t
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val to_int : t -> int
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val of_string: string -> t
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val to_string: t -> string
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#+end_src
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#+begin_src ocaml :tangle (eval ml) :exports none
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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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#+end_src
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** Simple operations
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#+begin_src ocaml :tangle (eval mli)
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val ( + ) : t -> t -> t
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val ( - ) : t -> t -> t
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val ( * ) : t -> float -> t
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val ( / ) : t -> float -> t
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val is_null : t -> bool
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#+end_src
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#+begin_src ocaml :tangle (eval ml) :exports none
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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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#+end_src
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** Printers
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#+begin_src ocaml :tangle (eval mli)
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val pp : Format.formatter -> t -> unit
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#+end_src
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#+begin_src ocaml :tangle (eval ml) :exports none
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let pp ppf x =
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Format.fprintf ppf "@[%s@]" (to_string x)
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#+end_src
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