kmail

stl_util.h
00001 /*  -*- c++ -*-
00002     stl_util.h
00003 
00004     This file is part of KMail, the KDE mail client.
00005     Copyright (c) 2004 Marc Mutz <mutz@kde.org>
00006 
00007     KMail is free software; you can redistribute it and/or modify it
00008     under the terms of the GNU General Public License, version 2, as
00009     published by the Free Software Foundation.
00010 
00011     KMail is distributed in the hope that it will be useful, but
00012     WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014     General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00019 
00020     In addition, as a special exception, the copyright holders give
00021     permission to link the code of this program with any edition of
00022     the TQt library by Trolltech AS, Norway (or with modified versions
00023     of TQt that use the same license as TQt), and distribute linked
00024     combinations including the two.  You must obey the GNU General
00025     Public License in all respects for all of the code used other than
00026     TQt.  If you modify this file, you may extend this exception to
00027     your version of the file, but you are not obligated to do so.  If
00028     you do not wish to do so, delete this exception statement from
00029     your version.
00030 */
00031 
00032 #ifndef __TDEPIM__KMAIL__STL_UTIL_H__
00033 #define __TDEPIM__KMAIL__STL_UTIL_H__
00034 
00035 #include <algorithm>
00036 
00037 template <typename T>
00038 struct DeleteAndSetToZero {
00039   void operator()( const T * & t ) { delete t; t = 0; }
00040 };
00041 
00042 template <typename T>
00043 static inline void deleteAll( T & c ) {
00044   for ( typename T::iterator it = c.begin() ; it != c.end() ; ++it ) {
00045     delete *it ; *it = 0;
00046   }
00047 }
00048 
00049 namespace kdtools {
00050 
00051     template <typename Iterator, typename UnaryPredicate>
00052     bool any( Iterator first, Iterator last, UnaryPredicate p )
00053     {
00054         while ( first != last )
00055             if ( p( *first ) )
00056                 return true;
00057             else
00058                 ++first;
00059         return false;
00060     }
00061 
00062 } // namespace kdtools
00063 
00064 #endif // __TDEPIM__KMAIL__STL_UTIL_H__