blob: 4428c057916716906ead5daa75e153add9bb7f59 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#ifndef _GREGORIAN__CONVERSION_HPP___
#define _GREGORIAN__CONVERSION_HPP___
/* Copyright (c) 2004-2005 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, Bart Garst
* $Date: 2008-11-12 14:37:53 -0500 (Wed, 12 Nov 2008) $
*/
#include <string>
#include <stdexcept>
#include <boost/throw_exception.hpp>
#include <boost/date_time/gregorian/gregorian_types.hpp>
#include <boost/date_time/c_time.hpp>
#if defined(USE_DATE_TIME_PRE_1_33_FACET_IO)
# if defined(BOOST_DATE_TIME_INCLUDE_LIMITED_HEADERS)
# include <boost/date_time/gregorian/formatters_limited.hpp>
# else
# include <boost/date_time/gregorian/formatters.hpp>
# endif // BOOST_DATE_TIME_INCLUDE_LIMITED_HEADERS
#else
# include <sstream>
# include <boost/date_time/gregorian/gregorian_io.hpp>
#endif // USE_DATE_TIME_PRE_1_33_FACET_IO
namespace boost {
namespace gregorian {
//! Converts a date to a tm struct. Throws out_of_range exception if date is a special value
inline
std::tm to_tm(const date& d)
{
if(d.is_pos_infinity() || d.is_neg_infinity() || d.is_not_a_date()){
std::string s = "tm unable to handle date value of ";
#if defined(USE_DATE_TIME_PRE_1_33_FACET_IO)
s += to_simple_string(d);
#else
std::ostringstream ss;
ss << d;
s += ss.str();
#endif // USE_DATE_TIME_PRE_1_33_FACET_IO
boost::throw_exception(std::out_of_range(s));
}
std::tm datetm;
boost::gregorian::date::ymd_type ymd = d.year_month_day();
datetm.tm_year = ymd.year-1900;
datetm.tm_mon = ymd.month-1;
datetm.tm_mday = ymd.day;
datetm.tm_wday = d.day_of_week();
datetm.tm_yday = d.day_of_year()-1;
datetm.tm_hour = datetm.tm_min = datetm.tm_sec = 0;
datetm.tm_isdst = -1; // negative because not enough info to set tm_isdst
return datetm;
}
//! Converts a tm structure into a date dropping the any time values.
inline
date date_from_tm(const std::tm& datetm)
{
return date(static_cast<unsigned short>(datetm.tm_year+1900),
static_cast<unsigned short>(datetm.tm_mon+1),
static_cast<unsigned short>(datetm.tm_mday));
}
} } //namespace boost::gregorian
#endif
|
Swift