| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11, c++14 |
| // <optional> |
| |
| // struct nullopt_t{see below}; |
| // inline constexpr nullopt_t nullopt(unspecified); |
| |
| // [optional.nullopt]/2: |
| // Type nullopt_t shall not have a default constructor or an initializer-list |
| // constructor, and shall not be an aggregate. |
| |
| #include <optional> |
| |
| int main() |
| { |
| std::nullopt_t n = {}; |
| } |
