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print.hpp

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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Christian Schulte <schulte@gecode.org>
00005  *     Vincent Barichard <Vincent.Barichard@univ-angers.fr>
00006  *
00007  *  Copyright:
00008  *     Christian Schulte, 2003
00009  *     Vincent Barichard, 2012
00010  *
00011  *  This file is part of Gecode, the generic constraint
00012  *  development environment:
00013  *     http://www.gecode.org
00014  *
00015  *  Permission is hereby granted, free of charge, to any person obtaining
00016  *  a copy of this software and associated documentation files (the
00017  *  "Software"), to deal in the Software without restriction, including
00018  *  without limitation the rights to use, copy, modify, merge, publish,
00019  *  distribute, sublicense, and/or sell copies of the Software, and to
00020  *  permit persons to whom the Software is furnished to do so, subject to
00021  *  the following conditions:
00022  *
00023  *  The above copyright notice and this permission notice shall be
00024  *  included in all copies or substantial portions of the Software.
00025  *
00026  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00027  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00028  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00029  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00030  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00031  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00032  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00033  *
00034  */
00035 
00036 #include <sstream>
00037 
00038 namespace Gecode { namespace Float {
00039   namespace Linear {
00040     class NoView;
00041   }
00042 
00043   template<class Char, class Traits, class View>
00044   std::basic_ostream<Char,Traits>&
00045   print_view(std::basic_ostream<Char,Traits>& os, const View& x) {
00046     std::basic_ostringstream<Char,Traits> s;
00047     s.copyfmt(os); s.width(0);
00048     if (x.assigned()) {
00049       s << "[[" << x.med() << "]]";
00050     } else {
00051       s << "[[" << x.min() << ".." << x.max() << "]]";
00052     }
00053     return os << s.str();
00054   }
00055 
00056   template<class Char, class Traits>
00057   inline std::basic_ostream<Char,Traits>&
00058   operator <<(std::basic_ostream<Char,Traits>& os, const FloatView& x) {
00059     return print_view(os,x);
00060   }
00061 
00062   template<class Char, class Traits>
00063   inline std::basic_ostream<Char,Traits>&
00064   operator <<(std::basic_ostream<Char,Traits>& os, const MinusView& x) {
00065     return print_view(os,x);
00066   }
00067 
00068   template<class Char, class Traits>
00069   inline std::basic_ostream<Char,Traits>&
00070   operator <<(std::basic_ostream<Char,Traits>& os, const OffsetView& x) {
00071     return print_view(os,x);
00072   }
00073 
00074   template<class Char, class Traits>
00075   inline std::basic_ostream<Char,Traits>&
00076   operator <<(std::basic_ostream<Char,Traits>& os, const ScaleView& x) {
00077     return print_view(os,x);
00078   }
00079 
00080   template<class Char, class Traits>
00081   inline std::basic_ostream<Char,Traits>&
00082   operator <<(std::basic_ostream<Char,Traits>& os, const Linear::NoView&) {
00083     return os << "NoView";
00084   }
00085 
00086 }}
00087 
00088 // STATISTICS: float-var
00089