00001 #ifndef TAGCOLL_OPSET_H 00002 #define TAGCOLL_OPSET_H 00003 00008 /* 00009 * Copyright (C) 2003,2004,2005 Enrico Zini <enrico@debian.org> 00010 * 00011 * This library is free software; you can redistribute it and/or 00012 * modify it under the terms of the GNU Lesser General Public 00013 * License as published by the Free Software Foundation; either 00014 * version 2.1 of the License, or (at your option) any later version. 00015 * 00016 * This library is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 * Lesser General Public License for more details. 00020 * 00021 * You should have received a copy of the GNU Lesser General Public 00022 * License along with this library; if not, write to the Free Software 00023 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00024 */ 00025 00026 /* TODO: replace + with | and ^ with &, since logical operators better 00027 * correspond to set operations */ 00028 00029 #include <set> 00030 00031 namespace Tagcoll 00032 { 00033 00057 template<class T> 00058 class OpSet : public std::set<T> 00059 { 00060 public: 00061 using std::set<T>::begin; 00062 using std::set<T>::end; 00063 00065 bool contains(const T& item) const { return find(item) != end(); } 00066 00068 bool contains(const OpSet<T>& ts) const; 00069 00079 int distance(const OpSet<T>& ts) const; 00080 00085 OpSet<T> operator+(const T& tag) const; 00086 00091 OpSet<T>& operator+=(const T& ts); 00092 00097 OpSet<T> operator+(const OpSet<T>& ts) const; 00098 00103 OpSet<T>& operator+=(const OpSet<T>& ts); 00104 00109 OpSet<T> operator-(const T& tag) const; 00110 00115 OpSet<T>& operator-=(const T& tag); 00116 00121 OpSet<T> operator-(const OpSet<T>& ts) const; 00122 00127 OpSet<T>& operator-=(const OpSet<T>& ts); 00128 00133 OpSet<T> operator^(const OpSet<T>& ts) const; 00134 00139 OpSet<T>& operator^=(const OpSet<T>& ts); 00140 }; 00141 00142 }; 00143 00144 // vim:set ts=4 sw=4: 00145 #endif