libcxx/test/std/strings/basic.string/string.cons/nullptr.compile.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
  10
  11 // <string>
  12
  13 // basic_string(nullptr_t) = delete; // C++23
  14 // basic_string& operator=(nullptr_t) = delete; // C++23
  15
  16 #include <string>
  17 #include <type_traits>
  18
  19 static_assert(!std::is_convertible_v<decltype(nullptr), std::string>);
  20 static_assert(!std::is_constructible_v<std::string, decltype(nullptr)>);
  21 static_assert(!std::is_assignable_v<std::string, decltype(nullptr)>);