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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/uses_allocator.h b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/uses_allocator.h
new file mode 100644
index 0000000..49b5409
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/uses_allocator.h
@@ -0,0 +1,109 @@
+// Uses-allocator Construction -*- C++ -*-
+
+// Copyright (C) 2010, 2011 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _USES_ALLOCATOR_H
+#define _USES_ALLOCATOR_H 1
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+# include <bits/c++0x_warning.h>
+#else
+
+#include <type_traits>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  /// [allocator.tag]
+  struct allocator_arg_t { };
+
+  constexpr allocator_arg_t allocator_arg = allocator_arg_t();
+
+_GLIBCXX_HAS_NESTED_TYPE(allocator_type)
+
+  template<typename _Tp, typename _Alloc,
+	   bool = __has_allocator_type<_Tp>::value>
+    struct __uses_allocator_helper
+    : public false_type { };
+
+  template<typename _Tp, typename _Alloc>
+    struct __uses_allocator_helper<_Tp, _Alloc, true>
+    : public integral_constant<bool, is_convertible<_Alloc,
+				     typename _Tp::allocator_type>::value>
+    { };
+
+  /// [allocator.uses.trait]
+  template<typename _Tp, typename _Alloc>
+    struct uses_allocator
+    : public integral_constant<bool,
+			       __uses_allocator_helper<_Tp, _Alloc>::value>
+    { };
+
+  template<typename _Tp, typename _Alloc, typename... _Args>
+    struct __uses_allocator_arg
+    : is_constructible<_Tp, _Alloc, _Args...>
+    { static_assert( uses_allocator<_Tp, _Alloc>::value, "uses allocator" ); };
+
+  struct __uses_alloc_base { };
+  struct __uses_alloc0 : __uses_alloc_base
+  { struct _Anything { _Anything(...) { } } _M_a; };
+  template<typename _Alloc>
+    struct __uses_alloc1 : __uses_alloc_base { const _Alloc* _M_a; };
+  template<typename _Alloc>
+    struct __uses_alloc2 : __uses_alloc_base { const _Alloc* _M_a; };
+
+  template<bool, typename _Alloc, typename... _Args>
+    struct __uses_alloc;
+
+  template<typename _Tp, typename _Alloc, typename... _Args>
+    struct __uses_alloc<true, _Tp, _Alloc, _Args...>
+    : conditional<
+        is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value,
+        __uses_alloc1<_Alloc>,
+       	__uses_alloc2<_Alloc>>::type
+    { };
+
+  template<typename _Tp, typename _Alloc, typename... _Args>
+    struct __uses_alloc<false, _Tp, _Alloc, _Args...>
+    : __uses_alloc0 { };
+
+  template<typename _Tp, typename _Alloc, typename... _Args>
+    struct __uses_alloc_impl
+    : __uses_alloc<uses_allocator<_Tp, _Alloc>::value, _Tp,  _Alloc, _Args...>
+    { };
+
+  template<typename _Tp, typename _Alloc, typename... _Args>
+    __uses_alloc_impl<_Tp, _Alloc, _Args...>
+    __use_alloc(const _Alloc& __a)
+    {
+      __uses_alloc_impl<_Tp, _Alloc, _Args...> __ret;
+      __ret._M_a = &__a;
+      return __ret;
+    }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif
+#endif