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diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
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+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
@@ -0,0 +1,198 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009 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 rc_binomial_heap_.hpp
+ * Contains an implementation for rc_binomial_heap_.
+ */
+
+/*
+ * Redundant-counter binomial heap.
+ */
+
+#include <ext/pb_ds/detail/cond_dealtor.hpp>
+#include <ext/pb_ds/detail/type_utils.hpp>
+#include <ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/rc.hpp>
+#include <debug/debug.h>
+
+namespace __gnu_pbds
+{
+  namespace detail
+  {
+#define PB_DS_CLASS_T_DEC \
+    template<typename Value_Type, class Cmp_Fn, class Allocator>
+
+#define PB_DS_CLASS_C_DEC \
+    rc_binomial_heap_<Value_Type, Cmp_Fn, Allocator>
+
+#define PB_DS_BASE_C_DEC \
+    binomial_heap_base_<Value_Type, Cmp_Fn, Allocator>
+
+#define PB_DS_RC_C_DEC \
+    rc<typename PB_DS_BASE_C_DEC::node, Allocator>
+
+    /**
+     * class description = "8y|\|0|\/|i41 h34p 74813">
+     **/
+    template<typename Value_Type, class Cmp_Fn, class Allocator>
+    class rc_binomial_heap_ : public PB_DS_BASE_C_DEC
+    {
+
+    private:
+      typedef PB_DS_BASE_C_DEC base_type;
+
+      typedef typename base_type::node_pointer node_pointer;
+
+      typedef typename base_type::const_node_pointer const_node_pointer;
+
+      typedef PB_DS_RC_C_DEC rc_t;
+
+    public:
+
+      typedef typename Allocator::size_type size_type;
+
+      typedef typename Allocator::difference_type difference_type;
+
+      typedef Value_Type value_type;
+
+      typedef typename base_type::pointer pointer;
+
+      typedef typename base_type::const_pointer const_pointer;
+
+      typedef typename base_type::reference reference;
+
+      typedef typename base_type::const_reference const_reference;
+
+      typedef typename base_type::const_point_iterator const_point_iterator;
+
+      typedef typename base_type::point_iterator point_iterator;
+
+      typedef typename base_type::const_iterator const_iterator;
+
+      typedef typename base_type::iterator iterator;
+
+      typedef typename base_type::cmp_fn cmp_fn;
+
+      typedef typename base_type::allocator_type allocator_type;
+
+    public:
+
+      rc_binomial_heap_();
+
+      rc_binomial_heap_(const Cmp_Fn& r_cmp_fn);
+
+      rc_binomial_heap_(const PB_DS_CLASS_C_DEC& other);
+
+      ~rc_binomial_heap_();
+
+      void
+      swap(PB_DS_CLASS_C_DEC& other);
+
+      inline point_iterator
+      push(const_reference r_val);
+
+      void
+      modify(point_iterator it, const_reference r_new_val);
+
+      inline void
+      pop();
+
+      void
+      erase(point_iterator it);
+
+      inline void
+      clear();
+
+      template<typename Pred>
+      size_type
+      erase_if(Pred pred);
+
+      template<typename Pred>
+      void
+      split(Pred pred, PB_DS_CLASS_C_DEC& other);
+
+      void
+      join(PB_DS_CLASS_C_DEC& other);
+
+#ifdef _GLIBCXX_DEBUG
+      void
+      assert_valid() const;
+#endif 
+
+#ifdef PB_DS_RC_BINOMIAL_HEAP_TRACE_
+      void
+      trace() const;
+#endif 
+
+    private:
+
+      inline node_pointer
+      link_with_next_sibling(node_pointer p_nd);
+
+      void
+      make_0_exposed();
+
+      void
+      make_binomial_heap();
+
+#ifdef _GLIBCXX_DEBUG
+      static const_node_pointer
+      next_2_pointer(const_node_pointer p_nd);
+
+      static const_node_pointer
+      next_after_0_pointer(const_node_pointer p_nd);
+#endif 
+
+    private:
+      rc_t m_rc;
+    };
+
+#include <ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp>
+#include <ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp>
+
+#undef PB_DS_CLASS_C_DEC
+
+#undef PB_DS_CLASS_T_DEC
+
+#undef PB_DS_BASE_C_DEC
+
+#undef PB_DS_RC_C_DEC
+  } // namespace detail
+} // namespace __gnu_pbds