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57 lines
1.8 KiB
57 lines
1.8 KiB
#ifndef GREG_DAY_HPP___ |
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#define GREG_DAY_HPP___ |
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/* Copyright (c) 2002,2003 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 |
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* $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ |
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*/ |
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#include "boost/date_time/constrained_value.hpp" |
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#include <stdexcept> |
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#include <string> |
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namespace boost { |
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namespace gregorian { |
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//! Exception type for gregorian day of month (1..31) |
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struct bad_day_of_month : public std::out_of_range |
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{ |
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bad_day_of_month() : |
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std::out_of_range(std::string("Day of month value is out of range 1..31")) |
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{} |
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//! Allow other classes to throw with unique string for bad day like Feb 29 |
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bad_day_of_month(const std::string& s) : |
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std::out_of_range(s) |
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{} |
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}; |
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//! Policy class that declares error handling and day of month ranges |
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typedef CV::simple_exception_policy<unsigned short, 1, 31, bad_day_of_month> greg_day_policies; |
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//! Generated represetation for gregorian day of month |
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typedef CV::constrained_value<greg_day_policies> greg_day_rep; |
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//! Represent a day of the month (range 1 - 31) |
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/*! This small class allows for simple conversion an integer value into |
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a day of the month for a standard gregorian calendar. The type |
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is automatically range checked so values outside of the range 1-31 |
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will cause a bad_day_of_month exception |
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*/ |
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class greg_day : public greg_day_rep { |
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public: |
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greg_day(unsigned short day_of_month) : greg_day_rep(day_of_month) {} |
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unsigned short as_number() const {return value_;} |
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operator unsigned short() const {return value_;} |
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private: |
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}; |
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} } //namespace gregorian |
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#endif
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