xref: /llvm-project/libcxx/test/std/language.support/support.exception/except.nested/ctor_copy.pass.cpp (revision 79dc7551d83b0aa95366fdac64cd06367d75a088)
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 // class nested_exception;
12 
13 // nested_exception(const nested_exception&) throw() = default;
14 
15 #include <exception>
16 #include <cassert>
17 
18 #include "test_macros.h"
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 
main(int,char **)29 int main(int, char**)
30 {
31     {
32         std::nested_exception e0;
33         std::nested_exception e = e0;
34         assert(e.nested_ptr() == nullptr);
35     }
36 #ifndef TEST_HAS_NO_EXCEPTIONS
37     {
38         try
39         {
40             throw A(2);
41             assert(false);
42         }
43         catch (const A&)
44         {
45             std::nested_exception e0;
46             std::nested_exception e = e0;
47             assert(e.nested_ptr() != nullptr);
48             try
49             {
50                 std::rethrow_exception(e.nested_ptr());
51                 assert(false);
52             }
53             catch (const A& a)
54             {
55                 assert(a == A(2));
56             }
57         }
58     }
59 #endif
60 
61   return 0;
62 }
63