/*   Foreach.hh - C++ foreach preprocessor macro for STL containers   Copyright (C) 2005 A. Bram Neijt <b.neijt@gmail.com>   This program 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 program 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 program; if not, write to the Free Software Foundation,   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.*////\file///\brief Preprosessor macro to define a STL iterator for loop: _foreach(iterator, container)#ifndef _ccsys_FOREACH_H_INCLUDED_#define _ccsys_FOREACH_H_INCLUDED_//// The triple expansion may seem daring, but it is needed to fully expand the __LINE__// Which is needed for code like: foreach(iter, arrayOfVectors[0])/////\brief Preprosessor macro to define a STL iterator for loop: _foreach(iterator, container)//////The preprosessor instruction foreach takes a variable name and an iterator name and translates///into a default for loop using the != operator. It should work with any forward iterator.///For const iterators, there is the cforeach preprocessor macro.///\section examples Examples///\code///vector<usnigned> numbers;///numbers.push_back(10);///_foreach(number, numbers)///  cout << *number << "\n";///\endcode//////DON'T!!!///Don't use temporary const objects returned by functions, like: foreach(i, file.lines()).#ifdef _foreach#error _foreach already defined! This macro may have gone wild!#endif#define _foreach( iter, cont) for( __typeof__((cont).begin()) iter = (cont).begin(); iter != (cont).end(); ++iter)//_INCLUDED#endif