#ifndef GREG_DURATION_HPP___
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#define GREG_DURATION_HPP___
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/* Copyright (c) 2002,2003, 2020 CrystalClear Software, Inc.
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* Use, modification and distribution is subject to the
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* Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
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* Author: Jeff Garland, Bart Garst
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* $Date$
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*/
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#include <boost/date_time/compiler_config.hpp>
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#include <boost/date_time/date_duration.hpp>
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#include <boost/date_time/int_adapter.hpp>
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#include <boost/date_time/special_defs.hpp>
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namespace boost {
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namespace gregorian {
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//!An internal date representation that includes infinities, not a date
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typedef boost::date_time::duration_traits_adapted date_duration_rep;
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//! Durations in days for gregorian system
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/*! \ingroup date_basics
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*/
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class BOOST_SYMBOL_VISIBLE date_duration :
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public boost::date_time::date_duration< date_duration_rep >
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{
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typedef boost::date_time::date_duration< date_duration_rep > base_type;
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public:
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typedef base_type::duration_rep duration_rep;
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//! Construct from a day count
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BOOST_CXX14_CONSTEXPR explicit
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date_duration(duration_rep day_count = 0) : base_type(day_count) {}
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//! construct from special_values
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BOOST_CXX14_CONSTEXPR
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date_duration(date_time::special_values sv) : base_type(sv) {}
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//! Construct from another date_duration
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BOOST_CXX14_CONSTEXPR
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date_duration(const base_type& other) : base_type(other)
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{}
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// Relational operators
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// NOTE: Because of date_time::date_duration< T > design choice we don't use Boost.Operators here,
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// because we need the class to be a direct base. Either lose EBO, or define operators by hand.
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// The latter is more effecient.
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BOOST_CXX14_CONSTEXPR bool operator== (const date_duration& rhs) const
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{
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return base_type::operator== (rhs);
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}
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BOOST_CXX14_CONSTEXPR bool operator!= (const date_duration& rhs) const
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{
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return !operator== (rhs);
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}
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BOOST_CXX14_CONSTEXPR bool operator< (const date_duration& rhs) const
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{
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return base_type::operator< (rhs);
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}
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BOOST_CXX14_CONSTEXPR bool operator> (const date_duration& rhs) const
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{
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return !(base_type::operator< (rhs) || base_type::operator== (rhs));
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}
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BOOST_CXX14_CONSTEXPR bool operator<= (const date_duration& rhs) const
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{
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return (base_type::operator< (rhs) || base_type::operator== (rhs));
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}
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BOOST_CXX14_CONSTEXPR bool operator>= (const date_duration& rhs) const
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{
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return !base_type::operator< (rhs);
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}
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//! Subtract another duration -- result is signed
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BOOST_CXX14_CONSTEXPR date_duration& operator-= (const date_duration& rhs)
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{
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base_type::operator-= (rhs);
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return *this;
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}
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BOOST_CXX14_CONSTEXPR friend
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date_duration operator- (date_duration rhs, date_duration const& lhs);
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//! Add a duration -- result is signed
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BOOST_CXX14_CONSTEXPR date_duration& operator+= (const date_duration& rhs)
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{
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base_type::operator+= (rhs);
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return *this;
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}
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BOOST_CXX14_CONSTEXPR friend
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date_duration operator+ (date_duration rhs, date_duration const& lhs);
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//! unary- Allows for dd = -date_duration(2); -> dd == -2
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BOOST_CXX14_CONSTEXPR date_duration operator- ()const
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{
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return date_duration(get_rep() * (-1));
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}
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//! Division operations on a duration with an integer.
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BOOST_CXX14_CONSTEXPR date_duration& operator/= (int divisor)
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{
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base_type::operator/= (divisor);
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return *this;
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}
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BOOST_CXX14_CONSTEXPR friend date_duration operator/ (date_duration rhs, int lhs);
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//! Returns the smallest duration -- used by to calculate 'end'
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static BOOST_CXX14_CONSTEXPR date_duration unit()
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{
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return date_duration(base_type::unit().get_rep());
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}
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};
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inline BOOST_CXX14_CONSTEXPR
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date_duration operator- (date_duration rhs, date_duration const& lhs)
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{
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rhs -= lhs;
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return rhs;
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}
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inline BOOST_CXX14_CONSTEXPR
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date_duration operator+ (date_duration rhs, date_duration const& lhs)
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{
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rhs += lhs;
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return rhs;
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}
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inline BOOST_CXX14_CONSTEXPR date_duration operator/ (date_duration rhs, int lhs)
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{
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rhs /= lhs;
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return rhs;
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}
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//! Shorthand for date_duration
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typedef date_duration days;
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} } //namespace gregorian
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#if defined(BOOST_DATE_TIME_OPTIONAL_GREGORIAN_TYPES)
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#include <boost/date_time/date_duration_types.hpp>
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#endif
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#endif
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