cpp-d1064d
[cross.git] / i686-linux-gnu-4.7 / usr / include / c++ / 4.7 / ext / pb_ds / detail / binary_heap_ / const_iterator.hpp
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+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009, 2010 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 binary_heap_/const_iterator.hpp
+ * Contains an iterator class returned by the table's const find and insert
+ *     methods.
+ */
+
+#ifndef PB_DS_BINARY_HEAP_CONST_ITERATOR_HPP
+#define PB_DS_BINARY_HEAP_CONST_ITERATOR_HPP
+
+#include <ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp>
+#include <debug/debug.h>
+
+namespace __gnu_pbds
+{
+  namespace detail
+  {
+#define PB_DS_BIN_HEAP_CIT_BASE \
+    binary_heap_point_const_iterator_<Value_Type, Entry, Simple, _Alloc>
+
+    /// Const point-type iterator.
+    template<typename Value_Type,
+            typename Entry,
+            bool Simple,
+            typename _Alloc>
+    class binary_heap_const_iterator_ : public PB_DS_BIN_HEAP_CIT_BASE
+    {
+    private:
+      typedef PB_DS_BIN_HEAP_CIT_BASE                  base_type;
+      typedef typename base_type::entry_pointer        entry_pointer;
+
+    public:
+      /// Category.
+      typedef std::forward_iterator_tag                iterator_category;
+
+      /// Difference type.
+      typedef typename _Alloc::difference_type                 difference_type;
+
+      /// Iterator's value type.
+      typedef typename base_type::value_type           value_type;
+
+      /// Iterator's pointer type.
+      typedef typename base_type::pointer              pointer;
+
+      /// Iterator's const pointer type.
+      typedef typename base_type::const_pointer        const_pointer;
+
+      /// Iterator's reference type.
+      typedef typename base_type::reference            reference;
+
+      /// Iterator's const reference type.
+      typedef typename base_type::const_reference      const_reference;
+
+      inline
+      binary_heap_const_iterator_(entry_pointer p_e) : base_type(p_e)
+      { }
+
+      /// Default constructor.
+      inline
+      binary_heap_const_iterator_()
+      { }
+
+      /// Copy constructor.
+      inline
+      binary_heap_const_iterator_(const binary_heap_const_iterator_& other) 
+      : base_type(other)
+      { }
+
+      /// Compares content to a different iterator object.
+      inline bool
+      operator==(const binary_heap_const_iterator_& other) const
+      { return base_type::m_p_e == other.m_p_e; }
+
+      /// Compares content (negatively) to a different iterator object.
+      inline bool
+      operator!=(const binary_heap_const_iterator_& other) const
+      { return base_type::m_p_e != other.m_p_e; }
+
+      inline binary_heap_const_iterator_& 
+      operator++()
+      {
+       _GLIBCXX_DEBUG_ASSERT(base_type::m_p_e != 0);
+       inc();
+       return *this;
+      }
+
+      inline binary_heap_const_iterator_
+      operator++(int)
+      {
+       binary_heap_const_iterator_ ret_it(base_type::m_p_e);
+       operator++();
+       return ret_it;
+      }
+
+    private:
+      void
+      inc()
+      { ++base_type::m_p_e; }
+    };
+
+#undef PB_DS_BIN_HEAP_CIT_BASE
+  } // namespace detail
+} // namespace __gnu_pbds
+
+#endif