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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/types_traits.hpp b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/types_traits.hpp
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+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009, 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/>.
+
+// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
+
+// Permission to use, copy, modify, sell, and distribute this software
+// is hereby granted without fee, provided that the above copyright
+// notice appears in all copies, and that both that copyright notice
+// and this permission notice appear in supporting documentation. None
+// of the above authors, nor IBM Haifa Research Laboratories, make any
+// representation about the suitability of this software for any
+// purpose. It is provided "as is" without express or implied
+// warranty.
+
+/**
+ * @file detail/types_traits.hpp
+ * Contains a traits class of types used by containers.
+ */
+
+#ifndef PB_DS_TYPES_TRAITS_HPP
+#define PB_DS_TYPES_TRAITS_HPP
+
+#include <algorithm>
+#include <utility>
+#include <ext/pb_ds/tag_and_trait.hpp>
+#include <ext/pb_ds/detail/type_utils.hpp>
+#include <utility>
+
+namespace __gnu_pbds
+{
+  namespace detail
+  {
+    /**
+     *  @addtogroup traits Traits
+     *  @{
+     */
+
+    /// Primary template.
+    template<typename Key, typename Mapped>
+      struct no_throw_copies
+      {
+	static const bool __simple = is_simple<Key>::value
+			   	 && is_simple<Mapped>::value;
+	typedef integral_constant<int, __simple> 	       	indicator;
+      };
+
+    /// Specialization.
+    template<typename Key>
+      struct no_throw_copies<Key, null_type>
+      {
+	typedef integral_constant<int, is_simple<Key>::value> 	indicator;
+      };
+
+
+    /// Stored value.
+    template<typename _Tv>
+      struct stored_value
+      {
+	typedef _Tv 	value_type;
+	value_type 	m_value;
+      };
+
+    /// Stored hash.
+    template<typename _Th>
+      struct stored_hash
+      {
+	typedef _Th 	hash_type;
+	hash_type 	m_hash;
+      };
+
+    /// Primary template for representation of stored data.
+    /// Two types of data can be stored: value and hash.
+    template<typename _Tv, typename _Th>
+      struct stored_data
+      : public stored_value<_Tv>, public stored_hash<_Th>
+      { };
+
+    /// Specialization for representation of stored data of just value type.
+    template<typename _Tv>
+      struct stored_data<_Tv, null_type>
+      : public stored_value<_Tv>
+      { };
+
+    /// Primary template.
+    template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash>
+      struct type_base;
+
+    /**
+     * Specialization of type_base for the case where the hash value
+     * is not stored alongside each value.
+     */
+    template<typename Key, typename Mapped, typename _Alloc>
+      struct type_base<Key, Mapped, _Alloc, false>
+      {
+      public:
+	typedef typename _Alloc::size_type 		size_type;
+
+      private:
+	typedef typename _Alloc::template rebind<Mapped>	__rebind_m;
+	typedef typename __rebind_m::other			__rebind_ma;
+	typedef std::pair<const Key, Mapped>			__value_type;
+	typedef typename _Alloc::template rebind<__value_type>	__rebind_v;
+       	typedef typename __rebind_v::other			__rebind_va;
+
+      public:
+	typedef typename __rebind_ma::value_type       	mapped_type;
+	typedef typename __rebind_ma::pointer 		mapped_pointer;
+	typedef typename __rebind_ma::const_pointer 	mapped_const_pointer;
+	typedef typename __rebind_ma::reference	       	mapped_reference;
+	typedef typename __rebind_ma::const_reference 	mapped_const_reference;
+
+	typedef typename __rebind_va::value_type 	value_type;
+	typedef typename __rebind_va::pointer 		pointer;
+	typedef typename __rebind_va::const_pointer 	const_pointer;
+	typedef typename __rebind_va::reference 	reference;
+	typedef typename __rebind_va::const_reference 	const_reference;
+
+	typedef stored_data<value_type, null_type>	stored_data_type;
+      };
+
+    /**
+     * Specialization of type_base for the case where the hash value
+     * is stored alongside each value.
+     */
+    template<typename Key, typename Mapped, typename _Alloc>
+      struct type_base<Key, Mapped, _Alloc, true>
+      {
+      public:
+	typedef typename _Alloc::size_type 		size_type;
+
+      private:
+	typedef typename _Alloc::template rebind<Mapped>	__rebind_m;
+	typedef typename __rebind_m::other			__rebind_ma;
+	typedef std::pair<const Key, Mapped>			__value_type;
+	typedef typename _Alloc::template rebind<__value_type>	__rebind_v;
+       	typedef typename __rebind_v::other			__rebind_va;
+
+      public:
+	typedef typename __rebind_ma::value_type       	mapped_type;
+	typedef typename __rebind_ma::pointer 		mapped_pointer;
+	typedef typename __rebind_ma::const_pointer 	mapped_const_pointer;
+	typedef typename __rebind_ma::reference	       	mapped_reference;
+	typedef typename __rebind_ma::const_reference 	mapped_const_reference;
+
+	typedef typename __rebind_va::value_type 	value_type;
+	typedef typename __rebind_va::pointer 		pointer;
+	typedef typename __rebind_va::const_pointer 	const_pointer;
+	typedef typename __rebind_va::reference 	reference;
+	typedef typename __rebind_va::const_reference 	const_reference;
+
+	typedef stored_data<value_type, size_type>	stored_data_type;
+      };
+
+
+    /**
+     * Specialization of type_base for the case where the hash value
+     * is not stored alongside each value.
+     */
+    template<typename Key, typename _Alloc>
+      struct type_base<Key, null_type, _Alloc, false>
+      {
+      public:
+	typedef typename _Alloc::size_type 		size_type;
+	typedef Key 					value_type;
+
+      private:
+	typedef typename _Alloc::template rebind<null_type>  	__rebind_m;
+	typedef typename __rebind_m::other			__rebind_ma;
+	typedef typename _Alloc::template rebind<value_type>	__rebind_v;
+       	typedef typename __rebind_v::other			__rebind_va;
+
+      public:
+	typedef typename __rebind_ma::value_type       	mapped_type;
+	typedef typename __rebind_ma::pointer 		mapped_pointer;
+	typedef typename __rebind_ma::const_pointer 	mapped_const_pointer;
+	typedef typename __rebind_ma::reference	       	mapped_reference;
+	typedef typename __rebind_ma::const_reference 	mapped_const_reference;
+
+	typedef typename __rebind_va::pointer 		pointer;
+	typedef typename __rebind_va::const_pointer 	const_pointer;
+	typedef typename __rebind_va::reference 	reference;
+	typedef typename __rebind_va::const_reference 	const_reference;
+
+	typedef stored_data<value_type, null_type>	stored_data_type;
+
+	static null_type 			s_null_type;
+      };
+
+    template<typename Key, typename _Alloc>
+      null_type
+      type_base<Key, null_type, _Alloc, false>::s_null_type;
+
+
+    /**
+     * Specialization of type_base for the case where the hash value
+     * is stored alongside each value.
+     */
+    template<typename Key, typename _Alloc>
+      struct type_base<Key, null_type, _Alloc, true>
+      {
+      public:
+	typedef typename _Alloc::size_type 		size_type;
+	typedef Key 					value_type;
+
+      private:
+	typedef typename _Alloc::template rebind<null_type>  	__rebind_m;
+	typedef typename __rebind_m::other			__rebind_ma;
+	typedef typename _Alloc::template rebind<value_type>	__rebind_v;
+       	typedef typename __rebind_v::other			__rebind_va;
+
+      public:
+	typedef typename __rebind_ma::value_type       	mapped_type;
+	typedef typename __rebind_ma::pointer 		mapped_pointer;
+	typedef typename __rebind_ma::const_pointer 	mapped_const_pointer;
+	typedef typename __rebind_ma::reference	       	mapped_reference;
+	typedef typename __rebind_ma::const_reference 	mapped_const_reference;
+
+	typedef typename __rebind_va::pointer 		pointer;
+	typedef typename __rebind_va::const_pointer 	const_pointer;
+	typedef typename __rebind_va::reference 	reference;
+	typedef typename __rebind_va::const_reference 	const_reference;
+
+	typedef stored_data<value_type, size_type>	stored_data_type;
+
+	static null_type 		      	s_null_type;
+      };
+
+    template<typename Key, typename _Alloc>
+      null_type
+      type_base<Key, null_type, _Alloc, true>::s_null_type;
+
+
+    /// Type base dispatch.
+    template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash>
+      struct type_dispatch
+      {
+	typedef type_base<Key, Mapped, _Alloc, Store_Hash> type;
+      };
+
+    /// Traits for abstract types.
+    template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash>
+      struct types_traits
+      : public type_dispatch<Key, Mapped, _Alloc, Store_Hash>::type
+      {
+      private:
+	typedef no_throw_copies<Key, Mapped>		__nothrowcopy;
+	typedef typename _Alloc::template rebind<Key>::other __rebind_a;
+
+      public:
+	typedef typename _Alloc::size_type 		size_type;
+	typedef typename __rebind_a::value_type 	key_type;
+	typedef typename __rebind_a::pointer 		key_pointer;
+	typedef typename __rebind_a::const_pointer 	key_const_pointer;
+	typedef typename __rebind_a::reference 		key_reference;
+	typedef typename __rebind_a::const_reference 	key_const_reference;
+	typedef std::pair<size_type, size_type> 	comp_hash;
+	typedef integral_constant<int, Store_Hash> 	store_extra;
+	typedef typename __nothrowcopy::indicator 	no_throw_indicator;
+
+	store_extra			       	m_store_extra_indicator;
+	no_throw_indicator 		 	m_no_throw_copies_indicator;
+    };
+    //@}
+  } // namespace detail
+} // namespace __gnu_pbds
+
+#endif