-module(lists_key_bug).
%% OTP-15570
-export([is_1/1, is_2/1, i/1, t1/0, t2/0, im/0]).
%% int_set([3])
is_1(V) ->
K = ikey(V),
case lists:keyfind(K, 1, [{<<"foo">>, bar}]) of
false ->
a;
{_, _} ->
b
end.
ikey(1) ->
3;
ikey(2) ->
<<"foo">>.
%% int_set([3, 5])
is_2(V) ->
K = iskey(V),
case lists:keyfind(K, 1, [{<<"foo">>, bar}]) of
false ->
a;
{_, _} ->
b
end.
iskey(1) ->
12;
iskey(2) ->
14;
iskey(3) ->
<<"foo">>.
%% integer()
i(V) ->
K = intkey(V),
case lists:keyfind(K, 1, [{9.0, foo}]) of
false ->
a;
{_, _} ->
b
end.
intkey(K) when is_integer(K) ->
K + 9999.
t1() ->
case lists:keyfind({17}, 1, [{{17.0}, true}]) of
false ->
a;
{_, _} ->
b
end.
t2() ->
case lists:keyfind({17.0}, 1, [{{17}, true}]) of
false ->
a;
{_, _} ->
b
end.
%% Note: #{1.0 => a} =/= #{1 => a}.
im() ->
case lists:keyfind(#{1.0 => a}, 1, [{#{1 => a}, foo}]) of
false ->
a;
{_, _} ->
b
end.
