00001 /* Variable class implementation (non-inline functions). 00002 Copyright (C) 2001-2008 Roberto Bagnara <bagnara@cs.unipr.it> 00003 00004 This file is part of the Parma Polyhedra Library (PPL). 00005 00006 The PPL is free software; you can redistribute it and/or modify it 00007 under the terms of the GNU General Public License as published by the 00008 Free Software Foundation; either version 3 of the License, or (at your 00009 option) any later version. 00010 00011 The PPL is distributed in the hope that it will be useful, but WITHOUT 00012 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00013 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00014 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 Foundation, 00018 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA. 00019 00020 For the most up-to-date information see the Parma Polyhedra Library 00021 site: http://www.cs.unipr.it/ppl/ . */ 00022 00023 #include <ppl-config.h> 00024 #include "Variable.defs.hh" 00025 #include <iostream> 00026 00027 namespace PPL = Parma_Polyhedra_Library; 00028 00029 PPL::Variable::output_function_type* 00030 PPL::Variable::current_output_function = 0; 00031 00032 bool 00033 PPL::Variable::OK() const { 00034 return id() < max_space_dimension(); 00035 } 00036 00037 void 00038 PPL::Variable::default_output_function(std::ostream& s, const Variable& v) { 00039 dimension_type varid = v.id(); 00040 s << static_cast<char>('A' + varid % 26); 00041 if (dimension_type i = varid / 26) 00042 s << i; 00043 } 00044 00046 std::ostream& 00047 PPL::IO_Operators::operator<<(std::ostream& s, const Variable& v) { 00048 (*Variable::current_output_function)(s, v); 00049 return s; 00050 }