1// -*- C++ -*-
2
3// Copyright (C) 2005 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
31
32// Permission to use, copy, modify, sell, and distribute this software
33// is hereby granted without fee, provided that the above copyright
34// notice appears in all copies, and that both that copyright notice and
35// this permission notice appear in supporting documentation. None of
36// the above authors, nor IBM Haifa Research Laboratories, make any
37// representation about the suitability of this software for any
38// purpose. It is provided "as is" without express or implied warranty.
39
40/**
41 * @file erase_if_pred.hpp
42 * Contains a bridge erase_if predicate
43 */
44
45template<class Pred>
46class erase_if_pred
47{
48public:
49  // Tmp Ami all erase-ifs should take a reference to a predicate?
50  erase_if_pred(Pred& r_pred, typename my_base::iterator base_it) : m_r_pred(r_pred),
51								    m_base_it(base_it)
52  { }
53
54  inline bool
55  operator()(typename my_base_data_type::iterator::reference r_val)
56  {
57    it_value_type_traits_t::make_valid(m_value_type_holder, m_base_it->first, r_val);
58
59    typename it_value_type_traits_t::pointer p_exp_val =
60      it_value_type_traits_t::recast(m_value_type_holder);
61
62    return (m_r_pred(*p_exp_val));
63  }
64
65private:
66  Pred& m_r_pred;
67
68  typename my_base::iterator m_base_it;
69
70  typename it_value_type_traits_t::value_type_holder m_value_type_holder;
71};
72
73