Source file comparisons.ml
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(** Interfaces for infix comparison operators and comparison functions. *)
open! Import
(** [Infix] lists the typical infix comparison operators. These functions are provided by
[<M>.O] modules, i.e., modules that expose monomorphic infix comparisons over some
[<M>.t]. *)
module type Infix = sig
type t : any
val ( >= ) : t -> t -> bool
val ( <= ) : t -> t -> bool
val ( = ) : t -> t -> bool
val ( > ) : t -> t -> bool
val ( < ) : t -> t -> bool
val ( <> ) : t -> t -> bool
end
module type%template [@mode m = (global, local)] S = sig
include Infix
[%%template:
[@@@mode.default m = (global, m)]
val equal : t @ m -> t @ m -> bool
(** [compare t1 t2] returns 0 if [t1] is equal to [t2], a negative integer if [t1] is
less than [t2], and a positive integer if [t1] is greater than [t2]. *)
val compare : t @ m -> t @ m -> int]
val min : t -> t -> t
val max : t -> t -> t
end
module type Infix_with_local_opt = sig
type t
external ( < ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%lessthan"
external ( <= ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%lessequal"
external ( <> ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%notequal"
external ( = ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%equal"
external ( > ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%greaterthan"
external ( >= ) : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%greaterequal"
end
module type%template [@mode m = (global, local)] S_with_local_opt = sig
include Infix_with_local_opt
[%%template:
[@@@mode.default m = (global, m)]
external equal : (t[@local_opt]) -> (t[@local_opt]) -> bool = "%equal"
external compare : (t[@local_opt]) -> (t[@local_opt]) -> int = "%compare"]
[%%template:
[@@@mode.default m = (global, local)]
val min : t @ m -> t @ m -> t @ m
val max : t @ m -> t @ m -> t @ m]
end
module type Infix_with_zero_alloc = sig
type t : any
val ( >= ) : t -> t -> bool [@@zero_alloc]
val ( <= ) : t -> t -> bool [@@zero_alloc]
val ( = ) : t -> t -> bool [@@zero_alloc]
val ( > ) : t -> t -> bool [@@zero_alloc]
val ( < ) : t -> t -> bool [@@zero_alloc]
val ( <> ) : t -> t -> bool [@@zero_alloc]
end
module type%template [@mode m = (global, local)] S_with_zero_alloc = sig
include Infix_with_zero_alloc
[%%template:
[@@@mode.default m = (global, m)]
val equal : t @ m -> t @ m -> bool [@@zero_alloc]
(** [compare t1 t2] returns 0 if [t1] is equal to [t2], a negative integer if [t1] is
less than [t2], and a positive integer if [t1] is greater than [t2]. *)
val compare : t @ m -> t @ m -> int
[@@zero_alloc]]
val min : t -> t -> t [@@zero_alloc]
val max : t -> t -> t [@@zero_alloc]
end
module type Infix_with_zero_alloc_strict = sig
type t
val ( >= ) : t -> t -> bool [@@zero_alloc strict]
val ( <= ) : t -> t -> bool [@@zero_alloc strict]
val ( = ) : t -> t -> bool [@@zero_alloc strict]
val ( > ) : t -> t -> bool [@@zero_alloc strict]
val ( < ) : t -> t -> bool [@@zero_alloc strict]
val ( <> ) : t -> t -> bool [@@zero_alloc strict]
end
module type%template [@mode m = (global, local)] S_with_zero_alloc_strict = sig
include Infix_with_zero_alloc_strict
[%%template:
[@@@mode.default m = (global, m)]
val equal : t @ m -> t @ m -> bool [@@zero_alloc strict]
(** [compare t1 t2] returns 0 if [t1] is equal to [t2], a negative integer if [t1] is
less than [t2], and a positive integer if [t1] is greater than [t2]. *)
val compare : t @ m -> t @ m -> int
[@@zero_alloc strict]]
val min : t -> t -> t [@@zero_alloc strict]
val max : t -> t -> t [@@zero_alloc strict]
end