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: interval_bounds()39 interval_bounds():_bits(){} interval_bounds(bound_type bounds)40 explicit interval_bounds(bound_type bounds): _bits(bounds){} all() const41 interval_bounds all ()const { return interval_bounds(_bits & _all ); } left() const42 interval_bounds left ()const { return interval_bounds(_bits & _left ); } right() const43 interval_bounds right()const { return interval_bounds(_bits & _right); } reverse_left() const44 interval_bounds reverse_left ()const { return interval_bounds((bound_type(~_bits)>>1) & _right); } reverse_right() const45 interval_bounds reverse_right()const { return interval_bounds((bound_type(~_bits)<<1) & _left ); } 46 bits() const47 bound_type bits()const{ return _bits; } 48 open()49 static interval_bounds open() { return interval_bounds(_open); } left_open()50 static interval_bounds left_open() { return interval_bounds(_left_open); } right_open()51 static interval_bounds right_open(){ return interval_bounds(_right_open);} closed()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: bounded_value(const domain_type & value,interval_bounds bound)66 bounded_value(const domain_type& value, interval_bounds bound) 67 : _value(value), _bound(bound) {} 68 value() const69 domain_type value()const { return _value; } bound() const70 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 81