From 363c3b45288dc6a229f5f7a2878059ecd71f5e0e Mon Sep 17 00:00:00 2001
From: Fardale <arrighi@crans.org>
Date: Thu, 20 Dec 2018 01:04:11 +0100
Subject: [PATCH] [CCResult] add doc for map_l

---
 src/core/CCResult.mli | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/CCResult.mli b/src/core/CCResult.mli
index a5b47bb6..04a69a5c 100644
--- a/src/core/CCResult.mli
+++ b/src/core/CCResult.mli
@@ -188,6 +188,9 @@ end
 (** {2 Collections} *)
 
 val map_l : ('a -> ('b, 'err) t) -> 'a list -> ('b list, 'err) t
+(** [map_l f l] apply [f] on every element of [l], and, in case of success for every
+    element, return [Ok (List.map f l)]. Otherwise, it fails, and the first error is
+    return.*)
 
 val fold_l : ('b -> 'a -> ('b, 'err) t) -> 'b -> 'a list -> ('b, 'err) t