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