xref: /llvm-project/libcxx/test/std/language.support/support.exception/except.nested/assign.pass.cpp (revision 9ddcc55228e3ca1763bf743b81f8809edbe0e487)
1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // exception_ptr has not been implemented on Windows
11 // XFAIL: LIBCXX-WINDOWS-FIXME
12 
13 // <exception>
14 
15 // class nested_exception;
16 
17 // nested_exception& operator=(const nested_exception&) throw() = default;
18 
19 #include <exception>
20 #include <cassert>
21 
22 #include "test_macros.h"
23 
24 class A
25 {
26     int data_;
27 public:
28     explicit A(int data) : data_(data) {}
29 
30     friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;}
31 };
32 
33 int main()
34 {
35     {
36         std::nested_exception e0;
37         std::nested_exception e;
38         e = e0;
39         assert(e.nested_ptr() == nullptr);
40     }
41 #ifndef TEST_HAS_NO_EXCEPTIONS
42     {
43         try
44         {
45             throw A(2);
46             assert(false);
47         }
48         catch (const A&)
49         {
50             std::nested_exception e0;
51             std::nested_exception e;
52             e = e0;
53             assert(e.nested_ptr() != nullptr);
54             try
55             {
56                 rethrow_exception(e.nested_ptr());
57                 assert(false);
58             }
59             catch (const A& a)
60             {
61                 assert(a == A(2));
62             }
63         }
64     }
65 #endif
66 }
67