C++ (Cpp) Gregorian Examples

Example #1

File: gregorian.cpp Project: FenLys/C_and_CPP

	Gregorian Gregorian::subtract_years(Gregorian const& date, year_t n) {
		auto y = date.year() - n;
		auto m = date.month();
		auto d = date.day();
		if (m == 2 && d == 29 && !is_gregorian_leapyear(y))
			d = 28;
		return Gregorian(year_t(y), month_t(m), day_t(d), date.hour(), date.minute(), date.second());
	}

Example #2

File: gregorian.cpp Project: FenLys/C_and_CPP

	Gregorian Gregorian::add_months(Gregorian const& date, month_t n) {
		/*auto m = date.month() + n;
		auto y = date.year() + (m - 1) / 12;
		m = (m - 1) % 12 + 1;
		auto d = gregorian_days_in_month(m, is_gregorian_leapyear(y));
		if (date.day() < d)
			d = date.day();*/
		year_t y = date.year() + n / 12;
		month_t m = date.month() + n % 12;
		auto adjust = (m - 1) / 12 + (m - 12) / 12;
		y = y + adjust;
		m = m - adjust * 12;
		day_t d = min(date.day(), gregorian_days_in_month(m, is_gregorian_leapyear(y)));
		return Gregorian(y, month_t(m), d, date.hour(), date.minute(), date.second());
	}

Example #3

File: gregorian.cpp Project: FenLys/C_and_CPP

	Gregorian Gregorian::subtract_months(Gregorian const& date, month_t n) {
		//auto m = date.month() - n;
		//auto y = date.year() - (m - 1) / 12;
		//m = (m - 1) % 12 + 1;
		//auto d = gregorian_days_in_month(m, is_gregorian_leapyear(y));
		//if (date.day() < d)
		//	d = date.day();
		//return Gregorian(y, month_t(m), d, date.hour(), date.minute(), date.second());
		year_t y = date.year() - n / 12;
		month_t m = date.month() - n % 12;
		auto adjust = (m - 1) / 12 + (m - 12) / 12;
		y = y + adjust;
		m = m - adjust * 12;
		day_t d = min(date.day(), gregorian_days_in_month(m, is_gregorian_leapyear(y)));
		return Gregorian(y, month_t(m), d, date.hour(), date.minute(), date.second());
	}

Example #4

File: cssmdates.cpp Project: darlinghq/darling-security

//
// Generalized parse-from-string setup
//
void CssmUniformDate::setFromString(const char *src, const char *format, size_t fieldWidth)
{
    // use a stack buffer
    char str[20];
    assert(fieldWidth < sizeof(str));
    
    // make a copy with proper null terminator
    memcpy(str, src, fieldWidth);
    str[fieldWidth] = '\0';

    // parse (with limited checks for bad field formats)
    long year;
    int month, day, hour, minute;
    double second;
    if (6 != sscanf(str, format,
        &year, &month, &day, &hour, &minute, &second))
        CssmError::throwMe(CSSM_ERRCODE_UNKNOWN_FORMAT);

    // success
    mTime = Gregorian((int)year, month, day, hour, minute, second);
}

Example #5

File: cssmdates.cpp Project: darlinghq/darling-security

//
// Uniform conversions with CssmDates
//
CssmUniformDate::CssmUniformDate(const CssmDate &date)
{
    mTime = CFGregorianDateGetAbsoluteTime(Gregorian(date.year(), date.month(), date.day()),
        NULL);
}

Example #6

File: islamic.cpp Project: spezek/Khronos

	Islamic::Islamic() { // TODO
		jd_to_islamic(Gregorian().to_jd(), year_, month_, day_, hour_, minute_, second_);
	}

Example #7

File: julian_calendar.cpp Project: spezek/Khronos

	Julian::Julian() {
		jd_to_julian(Gregorian().to_jd(),year_,month_,day_,hour_,minute_,second_);
	}