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