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      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 // XFAIL: libcpp-no-exceptions
     11 // <exception>
     12 
     13 // class nested_exception;
     14 
     15 // nested_exception(const nested_exception&) throw() = default;
     16 
     17 #include <exception>
     18 #include <cassert>
     19 
     20 class A
     21 {
     22     int data_;
     23 public:
     24     explicit A(int data) : data_(data) {}
     25 
     26     friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;}
     27 };
     28 
     29 int main()
     30 {
     31     {
     32         std::nested_exception e0;
     33         std::nested_exception e = e0;
     34         assert(e.nested_ptr() == nullptr);
     35     }
     36     {
     37         try
     38         {
     39             throw A(2);
     40             assert(false);
     41         }
     42         catch (const A&)
     43         {
     44             std::nested_exception e0;
     45             std::nested_exception e = e0;
     46             assert(e.nested_ptr() != nullptr);
     47             try
     48             {
     49                 rethrow_exception(e.nested_ptr());
     50                 assert(false);
     51             }
     52             catch (const A& a)
     53             {
     54                 assert(a == A(2));
     55             }
     56         }
     57     }
     58 }
     59