Fix clang 3.4-3.5 CE (2).

GitOrigin-RevId: 3ebf199d67ce42ea63add34aeb982debe8a9af3d
This commit is contained in:
levlam 2018-04-12 12:11:48 +03:00
parent 03bb533c07
commit 717a307ff2

View File

@ -16,7 +16,7 @@ template <class T>
class optional {
public:
optional() = default;
template <class T1>
template <class T1, std::enable_if_t<!std::is_same<std::decay_t<T1>, optional>::value, int> = 0>
optional(T1 &&t) : impl_(std::forward<T1>(t)) {
}
explicit operator bool() const {