--- /dev/null
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007, 2008, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 19.1 Exception classes
+
+#include <string>
+#include <system_error>
+#include <cstring>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+// libstdc++/1972
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+ string s("lack of sunlight, no water error");
+
+ // 1
+ system_error obj1 = system_error(error_code(), s);
+
+ // 2
+ system_error obj2(error_code(), s);
+
+ VERIFY( strcmp(obj1.what(), s.data()) == 0 );
+ VERIFY( strcmp(obj2.what(), s.data()) == 0 );
+}
+
+void test02()
+{
+ bool test __attribute__((unused)) = true;
+ string s("lack of sunlight error");
+ system_error x(error_code(), s);
+
+ VERIFY( strcmp(x.what(), s.data()) == 0 );
+}
+
+int main(void)
+{
+ test01();
+ test02();
+ return 0;
+}