Chris@16: #ifndef GREG_YEAR_HPP___
Chris@16: #define GREG_YEAR_HPP___
Chris@16: 
Chris@16: /* Copyright (c) 2002,2003 CrystalClear Software, Inc.
Chris@16:  * Use, modification and distribution is subject to the 
Chris@16:  * Boost Software License, Version 1.0. (See accompanying
Chris@16:  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  * Author: Jeff Garland 
Chris@101:  * $Date$
Chris@16:  */
Chris@16: 
Chris@16: #include "boost/date_time/constrained_value.hpp"
Chris@16: #include <stdexcept>
Chris@16: #include <string>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace gregorian {
Chris@16: 
Chris@16:   //! Exception type for gregorian year
Chris@16:   struct bad_year : public std::out_of_range
Chris@16:   {
Chris@16:     bad_year() : 
Chris@16:       std::out_of_range(std::string("Year is out of valid range: 1400..10000")) 
Chris@16:     {}
Chris@16:   };
Chris@16:   //! Policy class that declares error handling gregorian year type
Chris@16:   typedef CV::simple_exception_policy<unsigned short, 1400, 10000, bad_year> greg_year_policies;
Chris@16: 
Chris@16:   //! Generated representation for gregorian year
Chris@16:   typedef CV::constrained_value<greg_year_policies> greg_year_rep;
Chris@16: 
Chris@16:   //! Represent a day of the month (range 1900 - 10000) 
Chris@16:   /*! This small class allows for simple conversion an integer value into
Chris@16:       a year for the gregorian calendar.  This currently only allows a
Chris@16:       range of 1900 to 10000.  Both ends of the range are a bit arbitrary
Chris@16:       at the moment, but they are the limits of current testing of the 
Chris@16:       library.  As such they may be increased in the future.
Chris@16:   */
Chris@16:   class greg_year : public greg_year_rep {
Chris@16:   public:
Chris@16:     greg_year(unsigned short year) : greg_year_rep(year) {}
Chris@16:     operator unsigned short()  const {return value_;}
Chris@16:   private:
Chris@16:     
Chris@16:   };
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: } } //namespace gregorian
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: #endif