text: // -*- 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 erase_no_store_hash_fn_imps.hpp
   * Contains implementations of cc_ht_map_'s erase related functions,
   * when the hash value is not stored.
   */
  
  PB_DS_CLASS_T_DEC
  inline bool
  PB_DS_CLASS_C_DEC::
  erase(const_key_reference r_key)
  {
    _GLIBCXX_DEBUG_ONLY(assert_valid();)
    return erase_in_pos_imp(r_key, ranged_hash_fn_base::operator()(r_key));
  }
  
  PB_DS_CLASS_T_DEC
  inline bool
  PB_DS_CLASS_C_DEC::
  erase_in_pos_imp(const_key_reference r_key, size_type pos)
  {
    _GLIBCXX_DEBUG_ONLY(assert_valid();)
    entry_pointer p_e = m_entries[pos];
    resize_base::notify_erase_search_start();
    if (p_e == NULL)
      {
        resize_base::notify_erase_search_end();
        _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);)
        _GLIBCXX_DEBUG_ONLY(assert_valid();)
        return false;
      }
  
    if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), r_key))
      {
        resize_base::notify_erase_search_end();
        _GLIBCXX_DEBUG_ONLY(debug_base:: check_key_exists(r_key);)
        erase_entry_pointer(m_entries[pos]);
        do_resize_if_needed_no_throw();
        _GLIBCXX_DEBUG_ONLY(assert_valid();)
        return true;
      }
  
    while (true)
      {
        entry_pointer p_next_e = p_e->m_p_next;
        if (p_next_e == NULL)
          {
  	  resize_base::notify_erase_search_end();
  	  _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);)
            _GLIBCXX_DEBUG_ONLY(assert_valid();)
            return false;
          }
  
        if (hash_eq_fn_base::operator()(PB_DS_V2F(p_next_e->m_value), r_key))
          {
  	  resize_base::notify_erase_search_end();
  	  _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists(r_key);)
            erase_entry_pointer(p_e->m_p_next);
  	  do_resize_if_needed_no_throw();
  	  _GLIBCXX_DEBUG_ONLY(assert_valid();)
            return true;
          }
        resize_base::notify_erase_search_collision();
        p_e = p_next_e;
      }
  }
  
  