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author | Benjamin Barenblat <bbaren@debian.org> | 2019-02-02 19:29:23 -0500 |
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committer | Benjamin Barenblat <bbaren@debian.org> | 2019-02-02 19:29:23 -0500 |
commit | 9ebf44d84754adc5b64fcf612c6816c02c80462d (patch) | |
tree | bf5e06a28488e0e06a2f2011ff0d110e2e02f8fc /clib/option.ml | |
parent | 9043add656177eeac1491a73d2f3ab92bec0013c (diff) |
Imported Upstream version 8.9.0upstream/8.9.0upstream
Diffstat (limited to 'clib/option.ml')
-rw-r--r-- | clib/option.ml | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/clib/option.ml b/clib/option.ml index 32fe2fc5..7a3d5f93 100644 --- a/clib/option.ml +++ b/clib/option.ml @@ -100,12 +100,6 @@ let map f = function | Some y -> Some (f y) | _ -> None -(** [smartmap f x] does the same as [map f x] except that it tries to share - some memory. *) -let smartmap f = function - | Some y as x -> let y' = f y in if y' == y then x else Some y' - | _ -> None - (** [fold_left f a x] is [f a y] if [x] is [Some y], and [a] otherwise. *) let fold_left f a = function | Some y -> f a y @@ -176,6 +170,21 @@ let lift2 f x y = | _,_ -> None +(** {6 Smart operations} *) + +module Smart = +struct + + (** [Smart.map f x] does the same as [map f x] except that it tries to share + some memory. *) + let map f = function + | Some y as x -> let y' = f y in if y' == y then x else Some y' + | _ -> None + +end + +let smartmap = Smart.map + (** {6 Operations with Lists} *) module List = |