libcxx/test/std/language.support/support.exception/propagation/exception_ptr.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 // <exception>
  10
  11 // typedef unspecified exception_ptr;
  12
  13 // exception_ptr shall satisfy the requirements of NullablePointer.
  14
  15 #include <exception>
  16 #include <cassert>
  17 #include <type_traits>
  18
  19 #include "test_macros.h"
  20
  21 int main(int, char**)
  22 {
  23     std::exception_ptr p;
  24     assert(p == nullptr);
  25     std::exception_ptr p2 = p;
  26     assert(nullptr == p);
  27     assert(!p);
  28     assert(p2 == p);
  29     p2 = p;
  30     assert(p2 == p);
  31     assert(p2 == nullptr);
  32     std::exception_ptr p3 = nullptr;
  33     assert(p3 == nullptr);
  34     p3 = nullptr;
  35     assert(p3 == nullptr);
  36
  37     return 0;
  38 }