libcxx/test/std/utilities/expected/expected.bad/base.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 // Make sure std::bad_expected_access<E> inherits from std::bad_expected_access<void>.
  12
  13 #include <expected>
  14 #include <type_traits>
  15
  16 struct Foo {};
  17
  18 static_assert(std::is_base_of_v<std::bad_expected_access<void>, std::bad_expected_access<int>>);
  19 static_assert(std::is_base_of_v<std::bad_expected_access<void>, std::bad_expected_access<Foo>>);