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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [ext/] [pb_assoc/] [example/] [tree_split.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 tree_split_example.cpp * A basic example showing how to split tree-based container objects. */ // For rb_tree_assoc_cntnr. #include <ext/pb_assoc/assoc_cntnr.hpp> // For assert #include <cassert> int main() { /* * A red-black tree table mapping ints to chars. */ typedef pb_assoc::tree_assoc_cntnr< int, char> map_t; // A map_t object. map_t r; // Inserts some entries into r. for (int i = 0; i < 100; ++ i) r.insert(std::make_pair(i, 'a')); // Now split r into a different map_t object. // larger_r will hold the larger values following the split. map_t larger_r; // Split all elements larger than 1000 into larger_r. This is exception free. r.split(1000, larger_r); /* * Since there were no elements larger than 1000, r * should be unchanged. **/ assert(r.size() == 100); assert(r.begin()->first == 0); // Now perform a split which actually changes the content of r. // Split all elements larger than 3 into larger_r. r.split(3, larger_r); assert(r.size() == 4); assert(larger_r.begin()->first == 4); }