CCFloat(cleanup): remove function always present on 4.08

src/core/CCFloat.ml

@@ -1,13 +1,6 @@
 (* This file is free software, part of containers. See file "license" for more details. *)
 
-type t = float
+include Float
-
-type fpclass = Stdlib.fpclass =
-  | FP_normal
-  | FP_subnormal
-  | FP_zero
-  | FP_infinite
-  | FP_nan
 
 module Infix = struct
   let ( = ) : t -> t -> bool = Stdlib.( = )
@@ -27,47 +20,11 @@ include Infix
 
 [@@@ocaml.warning "-32"]
 
-let nan = Stdlib.nan
-let infinity = Stdlib.infinity
-let neg_infinity = Stdlib.neg_infinity
 let max_value = infinity
 let min_value = neg_infinity
 let max_finite_value = Stdlib.max_float
-let epsilon = Stdlib.epsilon_float
-let pi = 0x1.921fb54442d18p+1
-let is_nan x = Stdlib.(classify_float x = Stdlib.FP_nan)
-let add = ( +. )
-let sub = ( -. )
-let mul = ( *. )
-let div = ( /. )
-let neg = ( ~-. )
-let abs = Stdlib.abs_float
 let scale = ( *. )
 
-let min (x : t) y =
-  match Stdlib.classify_float x, Stdlib.classify_float y with
-  | FP_nan, _ -> y
-  | _, FP_nan -> x
-  | _ ->
-    if x < y then
-      x
-    else
-      y
-
-let max (x : t) y =
-  match Stdlib.classify_float x, Stdlib.classify_float y with
-  | FP_nan, _ -> y
-  | _, FP_nan -> x
-  | _ ->
-    if x > y then
-      x
-    else
-      y
-
-let equal (a : float) b = a = b
-let hash : t -> int = Hashtbl.hash
-let compare (a : float) b = Stdlib.compare a b
-
 [@@@ocaml.warning "+32"]
 
 type 'a printer = Format.formatter -> 'a -> unit
@@ -91,22 +48,7 @@ let sign_exn (a : float) =
   else
     compare a 0.
 
-let round x =
-  let low = floor x in
-  let high = ceil x in
-  if x -. low > high -. x then
-    high
-  else
-    low
-
-let to_int (a : float) = Stdlib.int_of_float a
-let of_int (a : int) = Stdlib.float_of_int a
-let to_string (a : float) = Stdlib.string_of_float a
 let of_string_exn (a : string) = Stdlib.float_of_string a
-
-let of_string_opt (a : string) =
-  try Some (Stdlib.float_of_string a) with Failure _ -> None
-
 let random n st = Random.State.float st n
 let random_small = random 100.0
 let random_range i j st = i +. random (j -. i) st

src/core/CCFloat.mli

@@ -3,17 +3,8 @@
 (** Basic operations on floating-point numbers
     @since 0.6.1 *)
 
-type t = float
+include module type of Float
-
+(** @inline *)
-type fpclass = Stdlib.fpclass =
-  | FP_normal
-  | FP_subnormal
-  | FP_zero
-  | FP_infinite
-  | FP_nan
-
-val nan : t
-(** [nan] is Not a Number (NaN). Equal to {!Stdlib.nan}. *)
 
 val max_value : t
 (** [max_value] is Positive infinity. Equal to {!Stdlib.infinity}. *)
@@ -24,50 +15,13 @@ val min_value : t
 val max_finite_value : t
 (** [max_finite_value] is the largest finite float value. Equal to {!Stdlib.max_float}. *)
 
-val epsilon : t
-(** [epsilon] is the smallest positive float x such that [1.0 +. x <> 1.0].
-    Equal to {!Stdlib.epsilon_float}. *)
-
-val pi : t
-(** [pi] is the constant pi. The ratio of a circumference to its diameter.
-    @since 3.0 *)
-
-val is_nan : t -> bool
-(** [is_nan f] returns [true] if f is NaN, [false] otherwise. *)
-
-val add : t -> t -> t
-(** [add x y] is equal to [x +. y]. *)
-
-val sub : t -> t -> t
-(** [sub x y] is equal to [x -. y]. *)
-
-val neg : t -> t
-(** [neg x] is equal to [~-. x]. *)
-
-val abs : t -> t
-(** [abs x] is the absolute value of the floating-point number [x].
-    Equal to {!Stdlib.abs_float}. *)
-
 val scale : t -> t -> t
 (** [scale x y] is equal to [x *. y]. *)
 
-val min : t -> t -> t
-(** [min x y] returns the min of the two given values [x] and [y]. *)
-
-val max : t -> t -> t
-(** [max x y] returns the max of the two given values [x] and [y]. *)
-
-val equal : t -> t -> bool
-(** [equal x y] is [true] if [x] and [y] are the same. *)
-
-val compare : t -> t -> int
-(** [compare x y] is {!Stdlib.compare x y}. *)
-
 type 'a printer = Format.formatter -> 'a -> unit
 type 'a random_gen = Random.State.t -> 'a
 
 val pp : t printer
-val hash : t -> int
 val random : t -> t random_gen
 val random_small : t random_gen
 val random_range : t -> t -> t random_gen
@@ -76,11 +30,6 @@ val fsign : t -> t
 (** [fsign x] is one of [-1., -0., +0., +1.], or [nan] if [x] is NaN.
     @since 0.7 *)
 
-val round : t -> t
-(** [round x] returns the closest integer value, either above or below.
-    For [n + 0.5], [round] returns [n].
-    @since 0.20 *)
-
 exception TrapNaN of string
 
 val sign_exn : t -> int
@@ -89,23 +38,11 @@ val sign_exn : t -> int
     Note that infinities have defined signs in OCaml.
     @since 0.7 *)
 
-val to_int : t -> int
-(** Alias to {!int_of_float}.
-    Unspecified if outside of the range of integers. *)
-
-val of_int : int -> t
-(** Alias to {!float_of_int}. *)
-
-val to_string : t -> string
-
 val of_string_exn : string -> t
 (** Alias to {!float_of_string}.
     @raise Failure in case of failure.
     @since 1.2 *)
 
-val of_string_opt : string -> t option
-(** @since 3.0 *)
-
 val equal_precision : epsilon:t -> t -> t -> bool
 (** Equality with allowed error up to a non negative epsilon value. *)
 

tests/core/t_float.ml

@@ -2,10 +2,10 @@ open CCFloat
 module T = (val Containers_testlib.make ~__FILE__ ())
 include T;;
 
-t @@ fun () -> max nan 1. = 1.;;
+t @@ fun () -> is_nan (max nan 1.);;
-t @@ fun () -> min nan 1. = 1.;;
+t @@ fun () -> is_nan (min nan 1.);;
-t @@ fun () -> max 1. nan = 1.;;
+t @@ fun () -> is_nan (max 1. nan);;
-t @@ fun () -> min 1. nan = 1.;;
+t @@ fun () -> is_nan (min 1. nan);;
 
 q
   Q.(pair float float)