1*775caa58SMarek Kurdej //===----------------------------------------------------------------------===//
2*775caa58SMarek Kurdej //
3*775caa58SMarek Kurdej // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*775caa58SMarek Kurdej // See https://llvm.org/LICENSE.txt for license information.
5*775caa58SMarek Kurdej // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*775caa58SMarek Kurdej //
7*775caa58SMarek Kurdej //===----------------------------------------------------------------------===//
8*775caa58SMarek Kurdej 
9*775caa58SMarek Kurdej // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
10*775caa58SMarek Kurdej 
11*775caa58SMarek Kurdej // <string>
12*775caa58SMarek Kurdej 
13*775caa58SMarek Kurdej // basic_string(nullptr_t) = delete; // C++2b
14*775caa58SMarek Kurdej // basic_string& operator=(nullptr_t) = delete; // C++2b
15*775caa58SMarek Kurdej 
16*775caa58SMarek Kurdej #include <string>
17*775caa58SMarek Kurdej #include <type_traits>
18*775caa58SMarek Kurdej 
19*775caa58SMarek Kurdej static_assert(!std::is_convertible_v<decltype(nullptr), std::string>);
20*775caa58SMarek Kurdej static_assert(!std::is_constructible_v<std::string, decltype(nullptr)>);
21*775caa58SMarek Kurdej static_assert(!std::is_assignable_v<std::string, decltype(nullptr)>);
22