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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [ext/] [pb_assoc/] [example/] [erase_if.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 erase_if_example.cpp * A basic example showing how to use erase_if. */ // For various associative containers. #include <ext/pb_assoc/assoc_cntnr.hpp> // For cout, endl. #include <iostream> // For assert. #include <cassert> struct between : public std::unary_function< std::pair<const int, char>, bool> { between(int b, int e) : m_b(b), m_e(e) { } inline bool operator()(std::pair<const int, char>& r_val) { return (r_val.first >= m_b&& r_val.first < m_e); } private: const int m_b; const int m_e; }; template<class Cntnr> void some_op_sequence(Cntnr c) { assert(c.empty()); assert(c.size() == 0); for (int i = 0; i < 100; ++i) c.insert(std::make_pair(i, static_cast<char>(i))); assert(c.size() == 100); /* Erase all values whose key is between 10 (inclusive) * and 90 (non-inclusive). */ c.erase_if(between(10 , 90)); assert(!c.empty()); assert(c.size() == 20); } int main() { /* * Perform operations on a list-update set. */ some_op_sequence(pb_assoc::lu_assoc_cntnr<int, char>()); /* * Perform operations on a collision-chaining hash set. */ some_op_sequence(pb_assoc::cc_hash_assoc_cntnr<int, char>()); /* * Perform operations on a general-probing hash set. */ some_op_sequence(pb_assoc::gp_hash_assoc_cntnr<int, char>()); /* * Perform operations on a red-black tree set. */ some_op_sequence(pb_assoc::tree_assoc_cntnr<int, char>()); /* * Perform operations on a splay tree set. */ some_op_sequence(pb_assoc::tree_assoc_cntnr< int, char, std::less<int>, pb_assoc::splay_tree_ds_tag>()); /* * Perform operations on a splay tree set. */ some_op_sequence(pb_assoc::tree_assoc_cntnr< int, char, std::less<int>, pb_assoc::ov_tree_ds_tag>()); }