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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [ext/] [pb_assoc/] [example/] [tree_order_statistics_join.cc] - Rev 19
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// -*- C++ -*- // Copyright (C) 2005 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 2, 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. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. // 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 splay_tree_map_order_statistics_example.cpp * An example showing how to augment a splay tree to support order statistics. */ // For trees. #include <ext/pb_assoc/assoc_cntnr.hpp> // For order_statistics_key #include <ext/pb_assoc/tree_policy.hpp> // For assert #include <cassert> /** * A splay tree table mapping ints to chars and storing the ints order statistics. */ typedef pb_assoc::tree_assoc_cntnr< pb_assoc::order_statistics_key<int>, char, pb_assoc::order_statistics_key_cmp<std::less<int> >, pb_assoc::splay_tree_ds_tag, pb_assoc::order_statistics_node_updator<int> > map_type; int main() { typedef pb_assoc::order_statistics_key< int> int_order_statistics_key; map_type s0; // Insert some entries into s0. s0.insert(make_pair(int_order_statistics_key(12), 'a')); s0.insert(make_pair(int_order_statistics_key(505), 'b')); s0.insert(make_pair(int_order_statistics_key(30), 'c')); // The order of the keys should be: 12, 30, 505. pb_assoc::find_by_order<map_type> by_order; assert(by_order(s0, 0)->first == 12); assert(by_order(s0, 1)->first == 30); assert(by_order(s0, 2)->first == 505); map_type s1; // Insert some entries into s1. s1.insert(make_pair(int_order_statistics_key(506), 'a')); s1.insert(make_pair(int_order_statistics_key(1222), 'b')); s1.insert(make_pair(int_order_statistics_key(3004), 'c')); // Now join s0 and s1. s0.join(s1); // The order of the keys should be: 12, 30, 505. assert(by_order(s0, 0)->first == 12); assert(by_order(s0, 1)->first == 30); assert(by_order(s0, 2)->first == 505); assert(by_order(s0, 3)->first == 506); assert(by_order(s0, 4)->first == 1222); assert(by_order(s0, 5)->first == 3004); }