Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <exception> |
| 11 | |
| 12 | // class nested_exception; |
| 13 | |
| 14 | // template <class E> void rethrow_if_nested(const E& e); |
| 15 | |
| 16 | #include <exception> |
| 17 | #include <cstdlib> |
| 18 | #include <cassert> |
| 19 | |
| 20 | class A |
| 21 | { |
| 22 | int data_; |
| 23 | public: |
| 24 | explicit A(int data) : data_(data) {} |
Sean Hunt | 2d81f3d | 2011-07-18 17:07:53 +0000 | [diff] [blame] | 25 | virtual ~A() _NOEXCEPT {} |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 26 | |
| 27 | friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;} |
| 28 | }; |
| 29 | |
| 30 | class B |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 31 | : public std::nested_exception, |
| 32 | public A |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 33 | { |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 34 | public: |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 35 | explicit B(int data) : A(data) {} |
| 36 | B(const B& b) : A(b) {} |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 37 | }; |
| 38 | |
| 39 | int main() |
| 40 | { |
| 41 | { |
| 42 | try |
| 43 | { |
| 44 | A a(3); |
| 45 | std::rethrow_if_nested(a); |
| 46 | assert(true); |
| 47 | } |
| 48 | catch (...) |
| 49 | { |
| 50 | assert(false); |
| 51 | } |
| 52 | } |
| 53 | { |
| 54 | try |
| 55 | { |
| 56 | throw B(5); |
| 57 | } |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 58 | catch (const B& b) |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 59 | { |
| 60 | try |
| 61 | { |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 62 | throw b; |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 63 | } |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 64 | catch (const A& a) |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 65 | { |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 66 | try |
| 67 | { |
| 68 | std::rethrow_if_nested(a); |
| 69 | assert(false); |
| 70 | } |
| 71 | catch (const B& b) |
| 72 | { |
| 73 | assert(b == B(5)); |
| 74 | } |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 75 | } |
| 76 | } |
| 77 | } |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 78 | { |
| 79 | try |
| 80 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 81 | std::rethrow_if_nested(1); |
Howard Hinnant | 6bb9f58 | 2010-05-28 13:35:41 +0000 | [diff] [blame] | 82 | assert(true); |
| 83 | } |
| 84 | catch (...) |
| 85 | { |
| 86 | assert(false); |
| 87 | } |
| 88 | } |
Howard Hinnant | ed2c291 | 2010-05-27 17:06:52 +0000 | [diff] [blame] | 89 | } |