BWAPI: SPAR/AIModule/BWTA/vendors/CGAL/CGAL/known_bit_size

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00001 // Copyright (c) 1999-2005  Utrecht University (The Netherlands),
00002 // ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
00003 // INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
00004 // (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
00005 // and Tel-Aviv University (Israel).  All rights reserved.
00006 //
00007 // This file is part of CGAL (www.cgal.org); you can redistribute it and/or
00008 // modify it under the terms of the GNU Lesser General Public License as
00009 // published by the Free Software Foundation; version 2.1 of the License.
00010 // See the file LICENSE.LGPL distributed with CGAL.
00011 //
00012 // Licensees holding a valid commercial license may use this file in
00013 // accordance with the commercial license agreement provided with the software.
00014 //
00015 // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016 // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00017 //
00018 // $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.5-branch/Number_types/include/CGAL/known_bit_size_integers.h $
00019 // $Id: known_bit_size_integers.h 41714 2008-01-20 20:24:20Z spion $
00020 //
00021 //
00022 // Author(s)     : Lutz Kettner, Sylvain Pion
00023 
00024 #ifndef CGAL_KNOWN_BIT_SIZE_INTEGERS_H
00025 #define CGAL_KNOWN_BIT_SIZE_INTEGERS_H
00026 
00027 #include <CGAL/number_type_basic.h>
00028 #include <boost/mpl/if.hpp>
00029 
00030 CGAL_BEGIN_NAMESPACE
00031 
00032 namespace CGALi {
00033 
00034 namespace mpl = boost::mpl;
00035 
00036 template < int size >
00037 struct No_Integer_Type_Of_Size;
00038 
00039 // Provides a signed integral type whose sizeof() is s.
00040 // If not possible, gives No_Integer_Type_Of_Size<s>.
00041 template < int s >
00042 struct SizeofSelect
00043 {
00044     typedef typename mpl::if_c< (sizeof(signed char) == s), signed char,
00045               typename mpl::if_c< (sizeof(short) == s), short,
00046                 typename mpl::if_c< (sizeof(int) == s), int,
00047                   typename mpl::if_c< (sizeof(long) == s), long,
00048                     No_Integer_Type_Of_Size<s> >::type >::type >::type >::type  Type;
00049 };
00050 
00051 // Same thing for unsigned types.
00052 template < int s >
00053 struct USizeofSelect
00054 {
00055     typedef typename mpl::if_c< (sizeof(unsigned char) == s), unsigned char,
00056               typename mpl::if_c< (sizeof(unsigned short) ==s), unsigned short,
00057                 typename mpl::if_c< (sizeof(unsigned int) == s), unsigned int,
00058                   typename mpl::if_c< (sizeof(unsigned long) == s),
00059                                                               unsigned long,
00060                     No_Integer_Type_Of_Size<s> >::type >::type >::type >::type  Type;
00061 };
00062 
00063 } // namespace CGALi
00064 
00065 
00066 typedef CGALi::SizeofSelect<1>::Type  Integer8;
00067 typedef CGALi::SizeofSelect<2>::Type  Integer16;
00068 typedef CGALi::SizeofSelect<4>::Type  Integer32;
00069 
00070 typedef CGALi::USizeofSelect<1>::Type  UInteger8;
00071 typedef CGALi::USizeofSelect<2>::Type  UInteger16;
00072 typedef CGALi::USizeofSelect<4>::Type  UInteger32;
00073 
00074 #if defined __ia64__ || defined __x86_64
00075     typedef long                     Integer64;
00076     typedef unsigned long            UInteger64;
00077 #   define CGAL_HAS_INTEGER64
00078 #endif
00079 
00080 #if defined _MSC_VER
00081     typedef __int64                  Integer64;
00082     typedef unsigned __int64         UInteger64;
00083 #   define CGAL_HAS_INTEGER64
00084 #endif
00085 
00086 // 64 integer types are defined for other platforms in CGAL/long_long.h
00087 
00088 CGAL_END_NAMESPACE
00089 
00090 #endif // CGAL_KNOWN_BIT_SIZE_INTEGERS_H