workaround for an issue with clang 6

2019-10-19 22:08:11 +02:00
parent 2382d2e21c
commit 4376bbe40b
1 changed files with 3 additions and 3 deletions
--- a/src/entt/meta/factory.hpp
+++ b/src/entt/meta/factory.hpp
@@ -712,9 +712,9 @@ class extended_meta_factory: public meta_factory<Type> {
    }

    template<typename Func>
-    auto unpack(choice_t<1>, Func func)
-    -> decltype(unpack(choice<3>, func())) {
-        unpack(choice<3>, func());
+    std::enable_if_t<std::is_invocable_v<Func>, void>
+    unpack(choice_t<1>, Func &&func) {
+        unpack(choice<3>, std::forward<Func>(func)());
    }

    template<typename Key, typename... Value>