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add CCOpt.is_none

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This commit is contained in:
Simon Cruanes 2015-05-24 21:36:48 +02:00
parent 262a2baacc
commit 7e5161f94f
2 changed files with 7 additions and 1 deletions
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4
src/core/CCOpt.ml
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@ -40,6 +40,10 @@ let is_some = function
| None -> false
| Some _ -> true
let is_none = function
| None -> true
| Some _ -> false
let compare f o1 o2 = match o1, o2 with
| None, None -> 0
| Some _, None -> 1

4
src/core/CCOpt.mli
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@ -36,6 +36,9 @@ val maybe : ('a -> 'b) -> 'b -> 'a t -> 'b
val is_some : _ t -> bool
val is_none : _ t -> bool
(** @since NEXT_RELEASE *)
val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int
val equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool
@ -62,7 +65,6 @@ val fold : ('a -> 'b -> 'a) -> 'a -> 'b t -> 'a
val filter : ('a -> bool) -> 'a t -> 'a t
(** Filter on 0 or 1 elements
@since 0.5 *)
val get : 'a -> 'a t -> 'a