diff options
Diffstat (limited to 'lib/stdlib/src/gb_trees.erl')
| -rw-r--r-- | lib/stdlib/src/gb_trees.erl | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/stdlib/src/gb_trees.erl b/lib/stdlib/src/gb_trees.erl index c0cdde012e..54a5ab6690 100644 --- a/lib/stdlib/src/gb_trees.erl +++ b/lib/stdlib/src/gb_trees.erl @@ -169,7 +169,7 @@ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% --spec empty() -> tree(). +-spec empty() -> tree(none(), none()). empty() -> {0, nil}. @@ -279,7 +279,7 @@ insert(Key, Val, {S, T}) when is_integer(S) -> insert_1(Key, Value, {Key1, V, Smaller, Bigger}, S) when Key < Key1 -> case insert_1(Key, Value, Smaller, ?div2(S)) of - {T1, H1, S1} -> + {T1, H1, S1} when is_integer(H1), is_integer(S1) -> T = {Key1, V, T1, Bigger}, {H2, S2} = count(Bigger), H = ?mul2(erlang:max(H1, H2)), @@ -296,7 +296,7 @@ insert_1(Key, Value, {Key1, V, Smaller, Bigger}, S) when Key < Key1 -> end; insert_1(Key, Value, {Key1, V, Smaller, Bigger}, S) when Key > Key1 -> case insert_1(Key, Value, Bigger, ?div2(S)) of - {T1, H1, S1} -> + {T1, H1, S1} when is_integer(H1), is_integer(S1) -> T = {Key1, V, Smaller, T1}, {H2, S2} = count(Smaller), H = ?mul2(erlang:max(H1, H2)), @@ -349,7 +349,7 @@ count(nil) -> Tree1 :: tree(Key, Value), Tree2 :: tree(Key, Value). -balance({S, T}) -> +balance({S, T}) when is_integer(S), S >= 0 -> {S, balance(T, S)}. balance(T, S) -> |