[except.nested]

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104850 91177308-0d34-0410-b5e6-96231b3b80d8

test/language.support/support.exception/except.nested/rethrow_nested.pass.cpp

@@ -0,0 +1,70 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <exception>
+
+// class nested_exception;
+
+// void rethrow_nested [[noreturn]] () const;
+
+#include <exception>
+#include <cstdlib>
+#include <cassert>
+
+class A
+{
+    int data_;
+public:
+    explicit A(int data) : data_(data) {}
+
+    friend bool operator==(const A& x, const A& y) {return x.data_ == y.data_;}
+};
+
+void go_quietly()
+{
+    std::exit(0);
+}
+
+int main()
+{
+    {
+        try
+        {
+            throw A(2);
+            assert(false);
+        }
+        catch (const A&)
+        {
+            const std::nested_exception e;
+            assert(e.nested_ptr() != nullptr);
+            try
+            {
+                e.rethrow_nested();
+                assert(false);
+            }
+            catch (const A& a)
+            {
+                assert(a == A(2));
+            }
+        }
+    }
+    {
+        try
+        {
+            std::set_terminate(go_quietly);
+            const std::nested_exception e;
+            e.rethrow_nested();
+            assert(false);
+        }
+        catch (...)
+        {
+            assert(false);
+        }
+    }
+}