| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <exception> |
| |
| // class nested_exception; |
| |
| // template <class E> void rethrow_if_nested(const E& e); |
| |
| #include <exception> |
| #include <cstdlib> |
| #include <cassert> |
| |
| class A |
| { |
| int data_; |
| public: |
| explicit A(int data) : data_(data) {} |
| virtual ~A() _NOEXCEPT {} |
| |
| friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;} |
| }; |
| |
| class B |
| : public std::nested_exception, |
| public A |
| { |
| public: |
| explicit B(int data) : A(data) {} |
| B(const B& b) : A(b) {} |
| }; |
| |
| int main() |
| { |
| { |
| try |
| { |
| A a(3); |
| std::rethrow_if_nested(a); |
| assert(true); |
| } |
| catch (...) |
| { |
| assert(false); |
| } |
| } |
| { |
| try |
| { |
| throw B(5); |
| } |
| catch (const B& b) |
| { |
| try |
| { |
| throw b; |
| } |
| catch (const A& a) |
| { |
| try |
| { |
| std::rethrow_if_nested(a); |
| assert(false); |
| } |
| catch (const B& b) |
| { |
| assert(b == B(5)); |
| } |
| } |
| } |
| } |
| { |
| try |
| { |
| std::rethrow_if_nested(1); |
| assert(true); |
| } |
| catch (...) |
| { |
| assert(false); |
| } |
| } |
| } |