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 // nested_exception(const nested_exception&) throw() = default; 15 16 #include <exception> 17 #include <cassert> 18 19 class A 20 { 21 int data_; 22 public: 23 explicit A(int data) : data_(data) {} 24 25 friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;} 26 }; 27 28 int main() 29 { 30 { 31 std::nested_exception e0; 32 std::nested_exception e = e0; 33 assert(e.nested_ptr() == nullptr); 34 } 35 { 36 try 37 { 38 throw A(2); 39 assert(false); 40 } 41 catch (const A&) 42 { 43 std::nested_exception e0; 44 std::nested_exception e = e0; 45 assert(e.nested_ptr() != nullptr); 46 try 47 { 48 rethrow_exception(e.nested_ptr()); 49 assert(false); 50 } 51 catch (const A& a) 52 { 53 assert(a == A(2)); 54 } 55 } 56 } 57 } 58
