1 #ifndef GREG_WEEKDAY_HPP___
2 #define GREG_WEEKDAY_HPP___
3 
4 /* Copyright (c) 2002,2003,2020 CrystalClear Software, Inc.
5  * Use, modification and distribution is subject to the
6  * Boost Software License, Version 1.0. (See accompanying
7  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
8  * Author: Jeff Garland, Bart Garst
9  * $Date$
10  */
11 
12 #include <boost/date_time/constrained_value.hpp>
13 #include <boost/date_time/date_defs.hpp>
14 #include <boost/date_time/compiler_config.hpp>
15 #include <stdexcept>
16 #include <string>
17 
18 namespace boost {
19 namespace gregorian {
20 
21   //bring enum values into the namespace
22   using date_time::Sunday;
23   using date_time::Monday;
24   using date_time::Tuesday;
25   using date_time::Wednesday;
26   using date_time::Thursday;
27   using date_time::Friday;
28   using date_time::Saturday;
29 
30 
31   //! Exception that flags that a weekday number is incorrect
32   struct BOOST_SYMBOL_VISIBLE bad_weekday : public std::out_of_range
33   {
bad_weekdayboost::gregorian::bad_weekday34     bad_weekday() : std::out_of_range(std::string("Weekday is out of range 0..6")) {}
35   };
36   typedef CV::simple_exception_policy<unsigned short, 0, 6, bad_weekday> greg_weekday_policies;
37   typedef CV::constrained_value<greg_weekday_policies> greg_weekday_rep;
38 
39 
40   //! Represent a day within a week (range 0==Sun to 6==Sat)
41   class BOOST_SYMBOL_VISIBLE greg_weekday : public greg_weekday_rep {
42   public:
43     typedef boost::date_time::weekdays weekday_enum;
greg_weekday(value_type day_of_week_num)44     BOOST_CXX14_CONSTEXPR greg_weekday(value_type day_of_week_num) :
45       greg_weekday_rep(day_of_week_num)
46     {}
47 
as_number() const48     BOOST_CXX14_CONSTEXPR value_type as_number() const {return value_;}
as_enum() const49     BOOST_CXX14_CONSTEXPR weekday_enum as_enum() const {return static_cast<weekday_enum>(value_);}
50 
51     //! Return a 3 digit english string of the day of week (eg: Sun)
as_short_string() const52     const char* as_short_string() const
53     {
54       static const char* const short_weekday_names[]
55         = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
56 
57       return short_weekday_names[value_];
58     }
59 
60     //! Return a point to a long english string representing day of week
as_long_string() const61     const char* as_long_string() const
62     {
63       static const char* const long_weekday_names[]
64         = {"Sunday","Monday","Tuesday","Wednesday", "Thursday", "Friday", "Saturday"};
65 
66       return long_weekday_names[value_];
67     }
68 
69 
70 #ifndef BOOST_NO_STD_WSTRING
71 
72     //! Return a 3 digit english wchar_t string of the day of week (eg: Sun)
as_short_wstring() const73     const wchar_t* as_short_wstring() const
74     {
75       static const wchar_t* const w_short_weekday_names[]={L"Sun", L"Mon", L"Tue",
76                                                            L"Wed", L"Thu", L"Fri", L"Sat"};
77       return w_short_weekday_names[value_];
78     }
79 
80     //! Return a point to a long english wchar_t string representing day of week
as_long_wstring() const81     const wchar_t* as_long_wstring()  const
82     {
83       static const wchar_t* const w_long_weekday_names[]= {L"Sunday",L"Monday",L"Tuesday",
84                                                            L"Wednesday", L"Thursday",
85                                                            L"Friday", L"Saturday"};
86       return w_long_weekday_names[value_];
87     }
88 
89 #endif // BOOST_NO_STD_WSTRING
90 
91 
92   };
93 
94 
95 
96 } } //namespace gregorian
97 
98 
99 
100 #endif
101