1// { dg-do compile } 2// -*- C++ -*- 3 4// Copyright (C) 2005 Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 2, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING. If not, write to the Free 19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 20// USA. 21 22// As a special exception, you may use this file as part of a free software 23// library without restriction. Specifically, if other files instantiate 24// templates or use macros or inline functions from this file, or you compile 25// this file and link it with other files to produce an executable, this 26// file does not by itself cause the resulting executable to be covered by 27// the GNU General Public License. This exception does not however 28// invalidate any other reasons why the executable file might be covered by 29// the GNU General Public License. 30 31// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33// Permission to use, copy, modify, sell, and distribute this software 34// is hereby granted without fee, provided that the above copyright 35// notice appears in all copies, and that both that copyright notice and 36// this permission notice appear in supporting documentation. None of 37// the above authors, nor IBM Haifa Research Laboratories, make any 38// representation about the suitability of this software for any 39// purpose. It is provided "as is" without express or implied warranty. 40 41/** 42 * @file bad_find_example.cpp 43 * A basic example showing how *not* to use unordered containers. 44 */ 45 46// For cc_hash_assoc_cntnr. 47#include <ext/pb_assoc/assoc_cntnr.hpp> 48// For pair. 49#include <utility> 50 51int 52main() 53{ 54 /* 55 * A collision-chaining hash table mapping ints to chars. 56 */ 57 typedef pb_assoc::cc_hash_assoc_cntnr< int, char> map_t; 58 59 // An map_t object. 60 map_t h; 61 62 // Insert a value mapping the int 1 to the char 'a'. 63 h.insert(std::make_pair(1, 'a')); 64 65 /* 66 * Find the entry of the key '1' the* wrong* way. 67 * The following line will not compile, since map_t::find 68 * returns a find_iterator, which, by design, is not convertible 69 * to map_t::iterator. 70 */ 71 map_t::iterator it = h.find(1); // { dg-error "conversion from" } 72} 73 74