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Deduction guide

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Simon Brand
2017-10-21 20:57:56 +01:00
parent fabf914164
commit 5affe7c736
1 changed files with 4 additions and 1 deletions
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5
optional.hpp
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@ -1346,7 +1346,10 @@ inline constexpr optional<T> make_optional(std::initializer_list<U> il,
return optional<T>(in_place, il, std::forward<Args>(args)...);
}
// template <class T> optional(T)->optional<T>;
#if __cplusplus >= 201703L
template <class T> optional(T)->optional<T>;
#endif
} // namespace tl
namespace std {