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 basic_multimap_example.cpp
42 * A basic example showing how to use multimaps.
43 */
44
45// For cout, endl
46#include <iostream>
47// For various associative containers.
48#include <ext/pb_assoc/assoc_cntnr.hpp>
49// For compound_data_type and null_data_type.
50#include <ext/pb_assoc/data_type.hpp>
51// For assert
52#include <cassert>
53
54template<class Cntnr>
55void
56some_op_sequence(Cntnr c)
57{
58  assert(c.empty());
59  assert(c.size() == 0);
60
61  c[1].insert('a');
62
63  c[2].insert('b');
64  c[2].insert('c');
65
66  assert(!c.empty());
67  assert(c.size() == 2);
68
69  std::cout << "Key 1 is mapped to " <<
70    static_cast<unsigned long>(c[1].size()) << " entries." << std::endl;
71
72  std::cout << "Key 2 is mapped to " <<
73    static_cast<unsigned long>(c[2].size()) << " entries." << std::endl;
74
75  std::cout << std::endl << "All values in the container:" << std::endl;
76
77  for (typename Cntnr::const_iterator it = c.begin(); it != c.end();
78       ++it)
79    {
80      std::cout << it->first << "->{ ";
81
82      for (typename Cntnr::data_type::const_iterator it_ = it->second.begin();
83	   it_  != it->second.end(); ++it_)
84	std::cout <<* it_ << " ";
85
86      std::cout << "}" << std::endl;
87    }
88
89  std::cout << std::endl;
90
91  c.clear();
92
93  assert(c.empty());
94  assert(c.size() == 0);
95}
96
97int
98main()
99{
100  /*
101   * Perform operations on a collision-chaining hash-table of of
102   *	red-black trees.
103   */
104  some_op_sequence(pb_assoc::cc_hash_assoc_cntnr<
105		   int,
106		   pb_assoc::compound_data_type<
107		   pb_assoc::tree_assoc_cntnr<
108		   char,
109		   pb_assoc::null_data_type> > >());
110}
111