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diff --git a/libstdc++-v3/include/ext/pb_assoc/detail/bin_search_tree_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_assoc/detail/bin_search_tree_/info_fn_imps.hpp
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+++ b/libstdc++-v3/include/ext/pb_assoc/detail/bin_search_tree_/info_fn_imps.hpp
@@ -0,0 +1,87 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005 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 2, 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 COPYING. If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+// 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 info_fn_imps.hpp
+ * Contains an implementation class for bin_search_tree_.
+ */
+
+PB_ASSOC_CLASS_T_DEC
+template<class Other_Map_Type>
+bool
+PB_ASSOC_CLASS_C_DEC::
+cmp_with_other(const Other_Map_Type& r_other) const
+{
+ PB_ASSOC_DBG_ONLY(assert_valid(true, true);)
+
+ if (m_size != r_other.size())
+ return (false);
+
+ for (typename Other_Map_Type::const_iterator it = r_other.begin();
+ it != r_other.end(); ++it)
+ if (find((const_key_reference)PB_ASSOC_V2F(*it)) == end())
+ return (false);
+
+ return (true);
+}
+
+PB_ASSOC_CLASS_T_DEC
+inline bool
+PB_ASSOC_CLASS_C_DEC::
+empty() const
+{
+ return (size() == 0);
+}
+
+PB_ASSOC_CLASS_T_DEC
+inline typename PB_ASSOC_CLASS_C_DEC::size_type
+PB_ASSOC_CLASS_C_DEC::
+max_size() const
+{
+ return (s_node_allocator.max_size());
+}
+
+PB_ASSOC_CLASS_T_DEC
+inline typename PB_ASSOC_CLASS_C_DEC::size_type
+PB_ASSOC_CLASS_C_DEC::
+size() const
+{
+ return (m_size);
+}
+