Fix missing qualification in <ext/rope>

2016-07-25  Georeth Chow  <georeth2010@gmail.com>

	* include/ext/ropeimpl.h (rope<>::_S_dump(_RopeRep*, int)): Qualify
	_S_concat enumerator.
	* testsuite/ext/rope/6.cc: New test.

From-SVN: r238711

libstdc++-v3/ChangeLog

+2016-07-25  Georeth Chow  <georeth2010@gmail.com>
+
+	* include/ext/ropeimpl.h (rope<>::_S_dump(_RopeRep*, int)): Qualify
+	_S_concat enumerator.
+	* testsuite/ext/rope/6.cc: New test.
+
 2016-07-25  Jonathan Wakely  <jwakely@redhat.com>
 
 	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Use

libstdc++-v3/include/ext/ropeimpl.h

@@ -1117,7 +1117,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	  printf("NULL\n");
 	  return;
 	}
-      if (_S_concat == __r->_M_tag)
+      if (__detail::_S_concat == __r->_M_tag)
 	{
 	  _RopeConcatenation* __c = (_RopeConcatenation*)__r;
 	  _RopeRep* __left = __c->_M_left;

libstdc++-v3/testsuite/ext/rope/6.cc

+// Copyright (C) 2016 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/>.
+
+// { dg-do compile }
+
+#include <ext/rope>
+
+// https://gcc.gnu.org/ml/libstdc++/2016-07/msg00114.html
+void
+test01()
+{
+  __gnu_cxx::crope r(100, 'x');
+  r.dump();
+}