@@ -710,6 +710,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
add_cv<typename tuple_element<__i, _Tp>::type>::type type;
};
+#if __cplusplus > 201103L
+ template<std::size_t __i, typename _Tp>
+ using tuple_element_t = typename tuple_element<__i, _Tp>::type;
+#endif
+
/// Finds the size of a given tuple type.
template<typename _Tp>
struct tuple_size;
@@ -1,4 +1,5 @@
-// { dg-options "-std=gnu++0x" }
+// { dg-options "-std=gnu++11" }
+// { dg-do compile }
// Copyright (C) 2007-2014 Free Software Foundation, Inc.
//
new file mode 100644
@@ -0,0 +1,36 @@
+// { dg-options "-std=gnu++14" }
+// { dg-do compile }
+
+// Copyright (C) 2014 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/>.
+
+#include <tuple>
+
+using namespace std;
+
+struct foo
+{ };
+
+int
+main()
+{
+ // As foo isn't constructible from anything else, this
+ // lets us check if the alias is returning foo when it should
+ foo q1;
+ tuple_element_t<0,tuple<foo,void,int> > q2(q1);
+ tuple_element_t<2,tuple<void,int,foo> > q3(q1);
+}