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>
11 
12 // class nested_exception;
13 
14 // void rethrow_nested [[noreturn]] () const;
15 
16 #include <exception>
17 #include <cstdlib>
18 #include <cassert>
19 
20 class A
21 {
22     int data_;
23 public:
A(int data)24     explicit A(int data) : data_(data) {}
25 
operator ==(const A & x,const A & y)26     friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;}
27 };
28 
go_quietly()29 void go_quietly()
30 {
31     std::exit(0);
32 }
33 
main()34 int main()
35 {
36     {
37         try
38         {
39             throw A(2);
40             assert(false);
41         }
42         catch (const A&)
43         {
44             const std::nested_exception e;
45             assert(e.nested_ptr() != nullptr);
46             try
47             {
48                 e.rethrow_nested();
49                 assert(false);
50             }
51             catch (const A& a)
52             {
53                 assert(a == A(2));
54             }
55         }
56     }
57     {
58         try
59         {
60             std::set_terminate(go_quietly);
61             const std::nested_exception e;
62             e.rethrow_nested();
63             assert(false);
64         }
65         catch (...)
66         {
67             assert(false);
68         }
69     }
70 }
71