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// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2021 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#ifndef QDATETIME_H
#define QDATETIME_H
#include <QtCore/qcalendar.h>
#include <QtCore/qcompare.h>
#include <QtCore/qlocale.h>
#include <QtCore/qnamespace.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qstring.h>
#include <climits>
#include <chrono>
#if defined(Q_OS_DARWIN) || defined(Q_QDOC)
Q_FORWARD_DECLARE_CF_TYPE(CFDate);
Q_FORWARD_DECLARE_OBJC_CLASS(NSDate);
#endif
QT_BEGIN_NAMESPACE
class QTimeZone;
class QDateTime;
class Q_CORE_EXPORT QDate
{
explicit constexpr QDate(qint64 julianDay) : jd(julianDay) {}
public:
using difference_type = qint64;
constexpr QDate() : jd(nullJd()) {}
QDate(int y, int m, int d);
QDate(int y, int m, int d, QCalendar cal);
// INTEGRITY incident-85878 (timezone and clock_cast are not supported)
#if (__cpp_lib_chrono >= 201907L && !defined(Q_OS_INTEGRITY)) || defined(Q_QDOC)
QT_POST_CXX17_API_IN_EXPORTED_CLASS
Q_IMPLICIT constexpr QDate(std::chrono::year_month_day date) noexcept
: jd(date.ok() ? stdSysDaysToJulianDay(date) : nullJd())
{}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
Q_IMPLICIT constexpr QDate(std::chrono::year_month_day_last date) noexcept
: jd(date.ok() ? stdSysDaysToJulianDay(date) : nullJd())
{}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
Q_IMPLICIT constexpr QDate(std::chrono::year_month_weekday date) noexcept
: jd(date.ok() ? stdSysDaysToJulianDay(date) : nullJd())
{}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
Q_IMPLICIT constexpr QDate(std::chrono::year_month_weekday_last date) noexcept
: jd(date.ok() ? stdSysDaysToJulianDay(date) : nullJd())
{}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
static constexpr QDate fromStdSysDays(const std::chrono::sys_days &days) noexcept
{
return QDate(stdSysDaysToJulianDay(days));
}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
constexpr std::chrono::sys_days toStdSysDays() const noexcept
{
const qint64 days = isValid() ? jd - unixEpochJd() : 0;
return std::chrono::sys_days(std::chrono::days(days));
}
#endif
constexpr bool isNull() const { return !isValid(); }
constexpr bool isValid() const { return jd >= minJd() && jd <= maxJd(); }
// Gregorian-optimized:
int year() const;
int month() const;
int day() const;
int dayOfWeek() const;
int dayOfYear() const;
int daysInMonth() const;
int daysInYear() const;
int weekNumber(int *yearNum = nullptr) const; // ISO 8601, always Gregorian
int year(QCalendar cal) const;
int month(QCalendar cal) const;
int day(QCalendar cal) const;
int dayOfWeek(QCalendar cal) const;
int dayOfYear(QCalendar cal) const;
int daysInMonth(QCalendar cal) const;
int daysInYear(QCalendar cal) const;
#if QT_DEPRECATED_SINCE(6, 9)
QT_DEPRECATED_VERSION_X_6_9("Pass QTimeZone instead")
QDateTime startOfDay(Qt::TimeSpec spec, int offsetSeconds = 0) const;
QT_DEPRECATED_VERSION_X_6_9("Pass QTimeZone instead")
QDateTime endOfDay(Qt::TimeSpec spec, int offsetSeconds = 0) const;
#endif
QDateTime startOfDay(const QTimeZone &zone) const;
QDateTime endOfDay(const QTimeZone &zone) const;
QDateTime startOfDay() const;
QDateTime endOfDay() const;
#if QT_CONFIG(datestring)
QString toString(Qt::DateFormat format = Qt::TextDate) const;
QString toString(const QString &format) const;
QString toString(const QString &format, QCalendar cal) const
{ return toString(qToStringViewIgnoringNull(format), cal); }
QString toString(QStringView format) const;
QString toString(QStringView format, QCalendar cal) const;
#endif
bool setDate(int year, int month, int day); // Gregorian-optimized
bool setDate(int year, int month, int day, QCalendar cal);
void getDate(int *year, int *month, int *day) const;
[[nodiscard]] QDate addDays(qint64 days) const;
// INTEGRITY incident-85878 (timezone and clock_cast are not supported)
#if (__cpp_lib_chrono >= 201907L && !defined(Q_OS_INTEGRITY)) || defined(Q_QDOC)
QT_POST_CXX17_API_IN_EXPORTED_CLASS
[[nodiscard]] QDate addDuration(std::chrono::days days) const
{
return addDays(days.count());
}
#endif
// Gregorian-optimized:
[[nodiscard]] QDate addMonths(int months) const;
[[nodiscard]] QDate addYears(int years) const;
[[nodiscard]] QDate addMonths(int months, QCalendar cal) const;
[[nodiscard]] QDate addYears(int years, QCalendar cal) const;
qint64 daysTo(QDate d) const;
static QDate currentDate();
#if QT_CONFIG(datestring)
// No DateFormat accepts a two-digit year, so no need for baseYear:
static QDate fromString(QStringView string, Qt::DateFormat format = Qt::TextDate);
static QDate fromString(const QString &string, Qt::DateFormat format = Qt::TextDate)
{ return fromString(qToStringViewIgnoringNull(string), format); }
// Accept calendar without over-ride of base year:
static QDate fromString(QStringView string, QStringView format, QCalendar cal)
{ return fromString(string.toString(), format, QLocale::DefaultTwoDigitBaseYear, cal); }
QT_CORE_INLINE_SINCE(6, 7)
static QDate fromString(const QString &string, QStringView format, QCalendar cal);
static QDate fromString(const QString &string, const QString &format, QCalendar cal)
{ return fromString(string, qToStringViewIgnoringNull(format), QLocale::DefaultTwoDigitBaseYear, cal); }
// Overriding base year is likely more common than overriding calendar (and
// likely to get more so, as the legacy base drops ever further behind us).
static QDate fromString(QStringView string, QStringView format,
int baseYear = QLocale::DefaultTwoDigitBaseYear)
{ return fromString(string.toString(), format, baseYear); }
static QDate fromString(QStringView string, QStringView format,
int baseYear, QCalendar cal)
{ return fromString(string.toString(), format, baseYear, cal); }
static QDate fromString(const QString &string, QStringView format,
int baseYear = QLocale::DefaultTwoDigitBaseYear);
static QDate fromString(const QString &string, QStringView format,
int baseYear, QCalendar cal);
static QDate fromString(const QString &string, const QString &format,
int baseYear = QLocale::DefaultTwoDigitBaseYear)
{ return fromString(string, qToStringViewIgnoringNull(format), baseYear); }
static QDate fromString(const QString &string, const QString &format,
int baseYear, QCalendar cal)
{ return fromString(string, qToStringViewIgnoringNull(format), baseYear, cal); }
#endif
static bool isValid(int y, int m, int d);
static bool isLeapYear(int year);
static constexpr inline QDate fromJulianDay(qint64 jd_)
{ return jd_ >= minJd() && jd_ <= maxJd() ? QDate(jd_) : QDate() ; }
constexpr inline qint64 toJulianDay() const { return jd; }
private:
// using extra parentheses around min to avoid expanding it if it is a macro
static constexpr inline qint64 nullJd() { return (std::numeric_limits<qint64>::min)(); }
static constexpr inline qint64 minJd() { return Q_INT64_C(-784350574879); }
static constexpr inline qint64 maxJd() { return Q_INT64_C( 784354017364); }
static constexpr inline qint64 unixEpochJd() { return Q_INT64_C(2440588); }
// INTEGRITY incident-85878 (timezone and clock_cast are not supported)
#if __cpp_lib_chrono >= 201907L && !defined(Q_OS_INTEGRITY)
#if !QT_CORE_REMOVED_SINCE(6, 7)
QT_POST_CXX17_API_IN_EXPORTED_CLASS
#endif
static constexpr qint64
stdSysDaysToJulianDay(const std::chrono::sys_days &days) noexcept
{
const auto epochDays = days.time_since_epoch().count();
// minJd() and maxJd() fit into 40 bits.
if constexpr (sizeof(epochDays) * CHAR_BIT >= 41) {
constexpr auto top = maxJd() - unixEpochJd();
constexpr auto bottom = minJd() - unixEpochJd();
if (epochDays > top || epochDays < bottom)
return nullJd();
}
return unixEpochJd() + epochDays;
}
#endif // __cpp_lib_chrono >= 201907L
qint64 jd;
friend class QDateTime;
friend class QDateTimeParser;
friend class QDateTimePrivate;
friend constexpr bool comparesEqual(const QDate &lhs, const QDate &rhs) noexcept
{ return lhs.jd == rhs.jd; }
friend constexpr Qt::strong_ordering
compareThreeWay(const QDate &lhs, const QDate &rhs) noexcept
{ return Qt::compareThreeWay(lhs.jd, rhs.jd); }
Q_DECLARE_STRONGLY_ORDERED_LITERAL_TYPE(QDate)
friend QDate &operator++(QDate &date)
{
date = date.addDays(1);
return date;
}
friend QDate &operator--(QDate &date)
{
date = date.addDays(-1);
return date;
}
friend QDate operator++(QDate &date, int)
{
QDate old = date;
++date;
return old;
}
friend QDate operator--(QDate &date, int)
{
QDate old = date;
--date;
return old;
}
#ifndef QT_NO_DATASTREAM
friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QDate);
friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &);
#endif
};
Q_DECLARE_TYPEINFO(QDate, Q_RELOCATABLE_TYPE);
class Q_CORE_EXPORT QTime
{
explicit constexpr QTime(int ms) : mds(ms)
{}
public:
constexpr QTime(): mds(NullTime)
{}
QTime(int h, int m, int s = 0, int ms = 0);
constexpr bool isNull() const { return mds == NullTime; }
bool isValid() const;
int hour() const;
int minute() const;
int second() const;
int msec() const;
#if QT_CONFIG(datestring)
QString toString(Qt::DateFormat f = Qt::TextDate) const;
QString toString(const QString &format) const
{ return toString(qToStringViewIgnoringNull(format)); }
QString toString(QStringView format) const;
#endif
bool setHMS(int h, int m, int s, int ms = 0);
[[nodiscard]] QTime addSecs(int secs) const;
int secsTo(QTime t) const;
[[nodiscard]] QTime addMSecs(int ms) const;
int msecsTo(QTime t) const;
static constexpr inline QTime fromMSecsSinceStartOfDay(int msecs) { return QTime(msecs); }
constexpr inline int msecsSinceStartOfDay() const { return mds == NullTime ? 0 : mds; }
static QTime currentTime();
#if QT_CONFIG(datestring)
static QTime fromString(QStringView string, Qt::DateFormat format = Qt::TextDate);
static QTime fromString(QStringView string, QStringView format)
{ return fromString(string.toString(), format); }
static QTime fromString(const QString &string, QStringView format);
static QTime fromString(const QString &string, Qt::DateFormat format = Qt::TextDate)
{ return fromString(qToStringViewIgnoringNull(string), format); }
static QTime fromString(const QString &string, const QString &format)
{ return fromString(string, qToStringViewIgnoringNull(format)); }
#endif
static bool isValid(int h, int m, int s, int ms = 0);
private:
enum TimeFlag { NullTime = -1 };
constexpr inline int ds() const { return mds == -1 ? 0 : mds; }
int mds;
friend constexpr bool comparesEqual(const QTime &lhs, const QTime &rhs) noexcept
{ return lhs.mds == rhs.mds; }
friend constexpr Qt::strong_ordering
compareThreeWay(const QTime &lhs, const QTime &rhs) noexcept
{ return Qt::compareThreeWay(lhs.mds, rhs.mds); }
Q_DECLARE_STRONGLY_ORDERED_LITERAL_TYPE(QTime)
friend class QDateTime;
friend class QDateTimePrivate;
#ifndef QT_NO_DATASTREAM
friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QTime);
friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &);
#endif
};
Q_DECLARE_TYPEINFO(QTime, Q_RELOCATABLE_TYPE);
class QDateTimePrivate;
class Q_CORE_EXPORT QDateTime
{
struct ShortData {
#if QT_VERSION >= QT_VERSION_CHECK(7,0,0) || defined(QT_BOOTSTRAPPED)
# if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
qint64 status : 8;
# endif
qint64 msecs : 56;
# if Q_BYTE_ORDER == Q_BIG_ENDIAN
qint64 status : 8;
# endif
#else
# if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
quintptr status : 8;
# endif
// note: this is only 24 bits on 32-bit systems...
qintptr msecs : sizeof(void *) * 8 - 8;
# if Q_BYTE_ORDER == Q_BIG_ENDIAN
quintptr status : 8;
# endif
#endif
friend constexpr bool operator==(ShortData lhs, ShortData rhs)
{ return lhs.status == rhs.status && lhs.msecs == rhs.msecs; }
};
union Data {
// To be of any use, we need at least 60 years around 1970, which
// is 1,893,456,000,000 ms. That requires 41 bits to store, plus
// the sign bit. With the status byte, the minimum size is 50 bits.
static constexpr bool CanBeSmall = sizeof(ShortData) * 8 > 50;
Data() noexcept;
Data(const QTimeZone &);
Data(const Data &other) noexcept;
Data(Data &&other) noexcept;
Data &operator=(const Data &other) noexcept;
Data &operator=(Data &&other) noexcept { swap(other); return *this; }
~Data();
void swap(Data &other) noexcept
{ std::swap(data, other.data); }
bool isShort() const;
inline void invalidate();
void detach();
QTimeZone timeZone() const;
const QDateTimePrivate *operator->() const;
QDateTimePrivate *operator->();
QDateTimePrivate *d;
ShortData data;
};
friend class QTypeInfo<Data>;
public:
QDateTime() noexcept;
enum class TransitionResolution {
Reject = 0,
RelativeToBefore,
RelativeToAfter,
PreferBefore,
PreferAfter,
PreferStandard,
PreferDaylightSaving,
// Closest match to behavior prior to introducing TransitionResolution:
LegacyBehavior = RelativeToBefore
};
#if QT_DEPRECATED_SINCE(6, 9)
QT_DEPRECATED_VERSION_X_6_9("Pass QTimeZone instead")
QDateTime(QDate date, QTime time, Qt::TimeSpec spec, int offsetSeconds = 0);
#endif
#if QT_CORE_REMOVED_SINCE(6, 7)
QDateTime(QDate date, QTime time, const QTimeZone &timeZone);
QDateTime(QDate date, QTime time);
#endif
QDateTime(QDate date, QTime time, const QTimeZone &timeZone,
TransitionResolution resolve = TransitionResolution::LegacyBehavior);
QDateTime(QDate date, QTime time,
TransitionResolution resolve = TransitionResolution::LegacyBehavior);
QDateTime(const QDateTime &other) noexcept;
QDateTime(QDateTime &&other) noexcept;
~QDateTime();
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QDateTime)
QDateTime &operator=(const QDateTime &other) noexcept;
void swap(QDateTime &other) noexcept { d.swap(other.d); }
bool isNull() const;
bool isValid() const;
QDate date() const;
QTime time() const;
Qt::TimeSpec timeSpec() const;
int offsetFromUtc() const;
QTimeZone timeRepresentation() const;
#if QT_CONFIG(timezone)
QTimeZone timeZone() const;
#endif // timezone
QString timeZoneAbbreviation() const;
bool isDaylightTime() const;
qint64 toMSecsSinceEpoch() const;
qint64 toSecsSinceEpoch() const;
#if QT_CORE_REMOVED_SINCE(6, 7)
void setDate(QDate date);
void setTime(QTime time);
#endif
void setDate(QDate date, TransitionResolution resolve = TransitionResolution::LegacyBehavior);
void setTime(QTime time, TransitionResolution resolve = TransitionResolution::LegacyBehavior);
#if QT_DEPRECATED_SINCE(6, 9)
QT_DEPRECATED_VERSION_X_6_9("Use setTimeZone() instead")
void setTimeSpec(Qt::TimeSpec spec);
QT_DEPRECATED_VERSION_X_6_9("Use setTimeZone() instead")
void setOffsetFromUtc(int offsetSeconds);
#endif
#if QT_CORE_REMOVED_SINCE(6, 7)
void setTimeZone(const QTimeZone &toZone);
#endif
void setTimeZone(const QTimeZone &toZone,
TransitionResolution resolve = TransitionResolution::LegacyBehavior);
void setMSecsSinceEpoch(qint64 msecs);
void setSecsSinceEpoch(qint64 secs);
#if QT_CONFIG(datestring)
QString toString(Qt::DateFormat format = Qt::TextDate) const;
QString toString(const QString &format) const;
QString toString(const QString &format, QCalendar cal) const
{ return toString(qToStringViewIgnoringNull(format), cal); }
QString toString(QStringView format) const;
QString toString(QStringView format, QCalendar cal) const;
#endif
[[nodiscard]] QDateTime addDays(qint64 days) const;
[[nodiscard]] QDateTime addMonths(int months) const;
[[nodiscard]] QDateTime addYears(int years) const;
[[nodiscard]] QDateTime addSecs(qint64 secs) const;
[[nodiscard]] QDateTime addMSecs(qint64 msecs) const;
[[nodiscard]] QDateTime addDuration(std::chrono::milliseconds msecs) const
{
return addMSecs(msecs.count());
}
#if QT_DEPRECATED_SINCE(6, 9)
QT_DEPRECATED_VERSION_X_6_9("Use toTimeZone instead")
QDateTime toTimeSpec(Qt::TimeSpec spec) const;
#endif
QDateTime toLocalTime() const;
QDateTime toUTC() const;
QDateTime toOffsetFromUtc(int offsetSeconds) const;
QDateTime toTimeZone(const QTimeZone &toZone) const;
qint64 daysTo(const QDateTime &) const;
qint64 secsTo(const QDateTime &) const;
qint64 msecsTo(const QDateTime &) const;
static QDateTime currentDateTime(const QTimeZone &zone);
static QDateTime currentDateTime();
static QDateTime currentDateTimeUtc();
#if QT_CONFIG(datestring)
// No DateFormat accepts a two-digit year, so no need for baseYear:
static QDateTime fromString(QStringView string, Qt::DateFormat format = Qt::TextDate);
static QDateTime fromString(const QString &string, Qt::DateFormat format = Qt::TextDate)
{ return fromString(qToStringViewIgnoringNull(string), format); }
// Accept calendar without over-ride of base year:
static QDateTime fromString(QStringView string, QStringView format, QCalendar cal)
{ return fromString(string.toString(), format, QLocale::DefaultTwoDigitBaseYear, cal); }
QT_CORE_INLINE_SINCE(6, 7)
static QDateTime fromString(const QString &string, QStringView format, QCalendar cal);
static QDateTime fromString(const QString &string, const QString &format, QCalendar cal)
{ return fromString(string, qToStringViewIgnoringNull(format), QLocale::DefaultTwoDigitBaseYear, cal); }
// Overriding base year is likely more common than overriding calendar (and
// likely to get more so, as the legacy base drops ever further behind us).
static QDateTime fromString(QStringView string, QStringView format,
int baseYear = QLocale::DefaultTwoDigitBaseYear)
{ return fromString(string.toString(), format, baseYear); }
static QDateTime fromString(QStringView string, QStringView format,
int baseYear, QCalendar cal)
{ return fromString(string.toString(), format, baseYear, cal); }
static QDateTime fromString(const QString &string, QStringView format,
int baseYear = QLocale::DefaultTwoDigitBaseYear);
static QDateTime fromString(const QString &string, QStringView format,
int baseYear, QCalendar cal);
static QDateTime fromString(const QString &string, const QString &format,
int baseYear = QLocale::DefaultTwoDigitBaseYear)
{ return fromString(string, qToStringViewIgnoringNull(format), baseYear); }
static QDateTime fromString(const QString &string, const QString &format,
int baseYear, QCalendar cal)
{ return fromString(string, qToStringViewIgnoringNull(format), baseYear, cal); }
#endif
#if QT_DEPRECATED_SINCE(6, 9)
QT_DEPRECATED_VERSION_X_6_9("Pass QTimeZone instead of time-spec, offset")
static QDateTime fromMSecsSinceEpoch(qint64 msecs, Qt::TimeSpec spec, int offsetFromUtc = 0);
QT_DEPRECATED_VERSION_X_6_9("Pass QTimeZone instead of time-spec, offset")
static QDateTime fromSecsSinceEpoch(qint64 secs, Qt::TimeSpec spec, int offsetFromUtc = 0);
#endif
static QDateTime fromMSecsSinceEpoch(qint64 msecs, const QTimeZone &timeZone);
static QDateTime fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone);
static QDateTime fromMSecsSinceEpoch(qint64 msecs);
static QDateTime fromSecsSinceEpoch(qint64 secs);
static qint64 currentMSecsSinceEpoch() noexcept;
static qint64 currentSecsSinceEpoch() noexcept;
#if defined(Q_OS_DARWIN) || defined(Q_QDOC)
static QDateTime fromCFDate(CFDateRef date);
CFDateRef toCFDate() const Q_DECL_CF_RETURNS_RETAINED;
static QDateTime fromNSDate(const NSDate *date);
NSDate *toNSDate() const Q_DECL_NS_RETURNS_AUTORELEASED;
#endif
static QDateTime fromStdTimePoint(
std::chrono::time_point<
std::chrono::system_clock,
std::chrono::milliseconds
> time
);
// INTEGRITY incident-85878 (timezone and clock_cast are not supported)
#if (__cpp_lib_chrono >= 201907L && !defined(Q_OS_INTEGRITY)) || defined(Q_QDOC)
#if __cpp_concepts >= 201907L || defined(Q_QDOC)
private:
// The duration type of the result of a clock_cast<system_clock>.
// This duration may differ from the duration of the input.
template <typename Clock, typename Duration>
using system_clock_cast_duration = decltype(
std::chrono::clock_cast<std::chrono::system_clock>(
std::declval<const std::chrono::time_point<Clock, Duration> &>()
).time_since_epoch()
);
public:
// Generic clock, as long as it's compatible with us (= system_clock)
template <typename Clock, typename Duration>
static QDateTime fromStdTimePoint(const std::chrono::time_point<Clock, Duration> &time)
requires
requires(const std::chrono::time_point<Clock, Duration> &t) {
// the clock can be converted to system_clock
std::chrono::clock_cast<std::chrono::system_clock>(t);
// after the conversion to system_clock, the duration type
// we get is convertible to milliseconds
requires std::is_convertible_v<
system_clock_cast_duration<Clock, Duration>,
std::chrono::milliseconds
>;
}
{
using namespace std::chrono;
const sys_time<milliseconds> sysTime = clock_cast<system_clock>(time);
return fromStdTimePoint(sysTime);
}
#endif // __cpp_concepts
// local_time
QT_POST_CXX17_API_IN_EXPORTED_CLASS
static QDateTime fromStdTimePoint(const std::chrono::local_time<std::chrono::milliseconds> &time)
{
return fromStdLocalTime(time);
}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
static QDateTime fromStdLocalTime(const std::chrono::local_time<std::chrono::milliseconds> &time)
{
QDateTime result(QDate(1970, 1, 1), QTime(0, 0, 0), TransitionResolution::LegacyBehavior);
return result.addMSecs(time.time_since_epoch().count());
}
#if QT_CONFIG(timezone) && (__cpp_lib_chrono >= 201907L || defined(Q_QDOC))
// zoned_time. defined in qtimezone.h
QT_POST_CXX17_API_IN_EXPORTED_CLASS
static QDateTime fromStdZonedTime(const std::chrono::zoned_time<
std::chrono::milliseconds,
const std::chrono::time_zone *
> &time);
#endif // QT_CONFIG(timezone)
QT_POST_CXX17_API_IN_EXPORTED_CLASS
std::chrono::sys_time<std::chrono::milliseconds> toStdSysMilliseconds() const
{
const std::chrono::milliseconds duration(toMSecsSinceEpoch());
return std::chrono::sys_time<std::chrono::milliseconds>(duration);
}
QT_POST_CXX17_API_IN_EXPORTED_CLASS
std::chrono::sys_seconds toStdSysSeconds() const
{
const std::chrono::seconds duration(toSecsSinceEpoch());
return std::chrono::sys_seconds(duration);
}
#endif // __cpp_lib_chrono >= 201907L && !Q_OS_INTEGRITY
friend std::chrono::milliseconds operator-(const QDateTime &lhs, const QDateTime &rhs)
{
return std::chrono::milliseconds(rhs.msecsTo(lhs));
}
friend QDateTime operator+(const QDateTime &dateTime, std::chrono::milliseconds duration)
{
return dateTime.addMSecs(duration.count());
}
friend QDateTime operator+(std::chrono::milliseconds duration, const QDateTime &dateTime)
{
return dateTime + duration;
}
QDateTime &operator+=(std::chrono::milliseconds duration)
{
*this = addMSecs(duration.count());
return *this;
}
friend QDateTime operator-(const QDateTime &dateTime, std::chrono::milliseconds duration)
{
return dateTime.addMSecs(-duration.count());
}
QDateTime &operator-=(std::chrono::milliseconds duration)
{
*this = addMSecs(-duration.count());
return *this;
}
// (1<<63) ms is 292277024.6 (average Gregorian) years, counted from the start of 1970, so
// Last is floor(1970 + 292277024.6); no year 0, so First is floor(1970 - 1 - 292277024.6)
enum class YearRange : qint32 { First = -292275056, Last = +292278994 };
private:
bool equals(const QDateTime &other) const;
#if QT_CORE_REMOVED_SINCE(6, 7)
bool precedes(const QDateTime &other) const;
#endif
friend class QDateTimePrivate;
Data d;
friend bool comparesEqual(const QDateTime &lhs, const QDateTime &rhs)
{ return lhs.equals(rhs); }
friend Q_CORE_EXPORT Qt::weak_ordering
compareThreeWay(const QDateTime &lhs, const QDateTime &rhs);
Q_DECLARE_WEAKLY_ORDERED_NON_NOEXCEPT(QDateTime)
#ifndef QT_NO_DATASTREAM
friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &);
friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &);
#endif
#if !defined(QT_NO_DEBUG_STREAM) && QT_CONFIG(datestring)
friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &);
#endif
};
Q_DECLARE_TYPEINFO(QDateTime::Data, Q_RELOCATABLE_TYPE);
Q_DECLARE_SHARED(QDateTime)
#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QDate);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &);
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QTime);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &);
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &);
#endif // QT_NO_DATASTREAM
#if !defined(QT_NO_DEBUG_STREAM) && QT_CONFIG(datestring)
Q_CORE_EXPORT QDebug operator<<(QDebug, QDate);
Q_CORE_EXPORT QDebug operator<<(QDebug, QTime);
Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &);
#endif
// QDateTime is not noexcept for now -- to be revised once
// timezone and calendaring support is added
Q_CORE_EXPORT size_t qHash(const QDateTime &key, size_t seed = 0);
Q_CORE_EXPORT size_t qHash(QDate key, size_t seed = 0) noexcept;
Q_CORE_EXPORT size_t qHash(QTime key, size_t seed = 0) noexcept;
#if QT_CONFIG(datestring) && QT_CORE_INLINE_IMPL_SINCE(6, 7)
QDate QDate::fromString(const QString &string, QStringView format, QCalendar cal)
{
return fromString(string, format, QLocale::DefaultTwoDigitBaseYear, cal);
}
QDateTime QDateTime::fromString(const QString &string, QStringView format, QCalendar cal)
{
return fromString(string, format, QLocale::DefaultTwoDigitBaseYear, cal);
}
#endif
QT_END_NAMESPACE
#endif // QDATETIME_H