deps/boost_1_63_0/boost/icl/interval_bounds.hpp

   1 /*-----------------------------------------------------------------------------+
   2 Copyright (c) 2010-2010: Joachim Faulhaber
   3 +------------------------------------------------------------------------------+
   4    Distributed under the Boost Software License, Version 1.0.
   5       (See accompanying file LICENCE.txt or copy at
   6            http://www.boost.org/LICENSE_1_0.txt)
   7 +-----------------------------------------------------------------------------*/
   8 #ifndef BOOST_ICL_INTERVAL_BOUNDS_HPP_JOFA_100330
   9 #define BOOST_ICL_INTERVAL_BOUNDS_HPP_JOFA_100330
  10
  11 #include <boost/utility/enable_if.hpp>
  12 #include <boost/icl/detail/design_config.hpp>
  13
  14 namespace boost{namespace icl
  15 {
  16
  17 typedef unsigned char bound_type;
  18
  19 class interval_bounds
  20 {
  21 public:
  22     BOOST_STATIC_CONSTANT(bound_type, static_open       = 0);
  23     BOOST_STATIC_CONSTANT(bound_type, static_left_open  = 1);
  24     BOOST_STATIC_CONSTANT(bound_type, static_right_open = 2);
  25     BOOST_STATIC_CONSTANT(bound_type, static_closed     = 3);
  26     BOOST_STATIC_CONSTANT(bound_type, dynamic           = 4);
  27     BOOST_STATIC_CONSTANT(bound_type, undefined         = 5);
  28
  29     BOOST_STATIC_CONSTANT(bound_type, _open       = 0);
  30     BOOST_STATIC_CONSTANT(bound_type, _left_open  = 1);
  31     BOOST_STATIC_CONSTANT(bound_type, _right_open = 2);
  32     BOOST_STATIC_CONSTANT(bound_type, _closed     = 3);
  33
  34     BOOST_STATIC_CONSTANT(bound_type, _right     = 1);
  35     BOOST_STATIC_CONSTANT(bound_type, _left      = 2);
  36     BOOST_STATIC_CONSTANT(bound_type, _all       = 3);
  37
  38 public:
  39     interval_bounds():_bits(){}
  40     explicit interval_bounds(bound_type bounds): _bits(bounds){}
  41     interval_bounds all  ()const { return interval_bounds(_bits & _all  ); }
  42     interval_bounds left ()const { return interval_bounds(_bits & _left ); }
  43     interval_bounds right()const { return interval_bounds(_bits & _right); }
  44     interval_bounds reverse_left ()const { return interval_bounds((~_bits>>1) & _right); }
  45     interval_bounds reverse_right()const { return interval_bounds((~_bits<<1) & _left ); }
  46
  47     bound_type bits()const{ return _bits; }
  48
  49     static interval_bounds open()      { return interval_bounds(_open);     }
  50     static interval_bounds left_open() { return interval_bounds(_left_open); }
  51     static interval_bounds right_open(){ return interval_bounds(_right_open);}
  52     static interval_bounds closed()    { return interval_bounds(_closed);   }
  53
  54 public:
  55     bound_type _bits;
  56 };
  57
  58
  59 template<class DomainT>
  60 class bounded_value
  61 {
  62 public:
  63     typedef DomainT domain_type;
  64     typedef bounded_value<DomainT> type;
  65 public:
  66     bounded_value(const domain_type& value, interval_bounds bound)
  67         : _value(value), _bound(bound) {}
  68
  69     domain_type     value()const { return _value; }
  70     interval_bounds bound()const { return _bound; }
  71
  72 private:
  73     domain_type     _value;
  74     interval_bounds _bound;
  75 };
  76
  77 }} // namespace icl boost
  78
  79 #endif
  80