(*
copyright (c) 2014, Carmelo Piccione
all rights reserved.

redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

redistributions of source code must retain the above copyright notice, this
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form must reproduce the above copyright notice, this list of conditions and the
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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*)

(** {1 Basic Float functions} *)

type t = float
type fpclass

val nan : t

val max_value : t
val min_value : t

val max_finite_value : t 

val epsilon : float

val is_nan : t -> bool 

val add : t -> t -> t

val sub : t -> t -> t

val neg : t -> t

val abs : t -> t 

val scale : t -> t -> t

val min : t -> t -> t

val max : t -> t -> t

val equal : t -> t -> bool

val compare : float -> float -> int 

type 'a printer = Buffer.t -> 'a -> unit
type 'a formatter = Format.formatter -> 'a -> unit
type 'a random_gen = Random.State.t -> 'a

val pp : t printer
val print : t formatter

val hash : t -> int

val random : t -> t random_gen
val random_small : t random_gen
val random_range : t -> t -> t random_gen

val sign : t -> int
(** [sign t] is one of [-1, 0, 1] *)

val to_int : t -> int
val of_int : int -> t

val to_string : t -> string 
val of_string : string -> t


val equal_precision : epsilon:t -> t -> t -> bool
(** Equality with allowed error up to a non negative epsilon value *)

val classify : float -> fpclass