X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Fhope_option.erl;h=29836f768668a507931dd10572984b8c22755f63;hb=4744fed98ce752dde11c03aeaf8d90983efe5ea6;hp=996e3428eeac2cb66a2f4005745352a5fdd6d374;hpb=352ddeb475ab48aabfab59558827e0e8d927551f;p=hope.git

diff --git a/src/hope_option.erl b/src/hope_option.erl
index 996e342..29836f7 100644
--- a/src/hope_option.erl
+++ b/src/hope_option.erl
@@ -57,10 +57,13 @@ return(X, Condition) ->
 map({some, X}, F) -> {some, F(X)};
 map(none     , _) -> none.
 
--spec iter(t(A), fun((A) -> (ok))) ->
-    ok.
-iter({some, X}, F) -> ok = F(X);
-iter(none     , _) -> ok.
+-spec iter(t(A), fun((A) -> (any()))) ->
+    {}.
+iter({some, X}, F) ->
+    _ = F(X),
+    {};
+iter(none, _) ->
+    {}.
 
 -spec pipe([fun((A) -> t(B))], A) ->
     t(B).