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Diffstat (limited to '3rdParty/Boost/src/boost/date_time/local_time/date_duration_operators.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/date_time/local_time/date_duration_operators.hpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/date_time/local_time/date_duration_operators.hpp b/3rdParty/Boost/src/boost/date_time/local_time/date_duration_operators.hpp new file mode 100644 index 0000000..ee87022 --- /dev/null +++ b/3rdParty/Boost/src/boost/date_time/local_time/date_duration_operators.hpp @@ -0,0 +1,115 @@ +#ifndef LOCAL_TIME_DATE_DURATION_OPERATORS_HPP___ +#define LOCAL_TIME_DATE_DURATION_OPERATORS_HPP___ + +/* Copyright (c) 2004 CrystalClear Software, Inc. + * Subject to the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or + * http://www.boost.org/LICENSE_1_0.txt) + * Author: Jeff Garland, Bart Garst + * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ + */ + +#include "boost/date_time/gregorian/greg_duration_types.hpp" +#include "boost/date_time/local_time/local_date_time.hpp" + +namespace boost { +namespace local_time { + + /*!@file date_duration_operators.hpp Operators for local_date_time and + * optional gregorian types. Operators use snap-to-end-of-month behavior. + * Further details on this behavior can be found in reference for + * date_time/date_duration_types.hpp and documentation for + * month and year iterators. + */ + + + /*! Adds a months object and a local_date_time. Result will be same + * day-of-month as local_date_time unless original day was the last day of month. + * see date_time::months_duration for more details */ + inline + local_date_time + operator+(const local_date_time& t, const boost::gregorian::months& m) + { + return t + m.get_offset(t.utc_time().date()); + } + + /*! Adds a months object to a local_date_time. Result will be same + * day-of-month as local_date_time unless original day was the last day of month. + * see date_time::months_duration for more details */ + inline + local_date_time + operator+=(local_date_time& t, const boost::gregorian::months& m) + { + return t += m.get_offset(t.utc_time().date()); + } + + /*! Subtracts a months object and a local_date_time. Result will be same + * day-of-month as local_date_time unless original day was the last day of month. + * see date_time::months_duration for more details */ + inline + local_date_time + operator-(const local_date_time& t, const boost::gregorian::months& m) + { + // get_neg_offset returns a negative duration, so we add + return t + m.get_neg_offset(t.utc_time().date()); + } + + /*! Subtracts a months object from a local_date_time. Result will be same + * day-of-month as local_date_time unless original day was the last day of month. + * see date_time::months_duration for more details */ + inline + local_date_time + operator-=(local_date_time& t, const boost::gregorian::months& m) + { + // get_neg_offset returns a negative duration, so we add + return t += m.get_neg_offset(t.utc_time().date()); + } + + // local_date_time & years + + /*! Adds a years object and a local_date_time. Result will be same + * month and day-of-month as local_date_time unless original day was the + * last day of month. see date_time::years_duration for more details */ + inline + local_date_time + operator+(const local_date_time& t, const boost::gregorian::years& y) + { + return t + y.get_offset(t.utc_time().date()); + } + + /*! Adds a years object to a local_date_time. Result will be same + * month and day-of-month as local_date_time unless original day was the + * last day of month. see date_time::years_duration for more details */ + inline + local_date_time + operator+=(local_date_time& t, const boost::gregorian::years& y) + { + return t += y.get_offset(t.utc_time().date()); + } + + /*! Subtracts a years object and a local_date_time. Result will be same + * month and day-of-month as local_date_time unless original day was the + * last day of month. see date_time::years_duration for more details */ + inline + local_date_time + operator-(const local_date_time& t, const boost::gregorian::years& y) + { + // get_neg_offset returns a negative duration, so we add + return t + y.get_neg_offset(t.utc_time().date()); + } + + /*! Subtracts a years object from a local_date_time. Result will be same + * month and day-of-month as local_date_time unless original day was the + * last day of month. see date_time::years_duration for more details */ + inline + local_date_time + operator-=(local_date_time& t, const boost::gregorian::years& y) + { + // get_neg_offset returns a negative duration, so we add + return t += y.get_neg_offset(t.utc_time().date()); + } + + +}} // namespaces + +#endif // LOCAL_TIME_DATE_DURATION_OPERATORS_HPP___ |