Linux Manuals session 3

std::chrono::year_month_day_last::year,std::chrono::year_month_day_last::month, – std::chrono::year_month_day_last::year,std::chrono::year_month_day_last::month, Synopsis constexpr std::chrono::year year() const noexcept; (1)(since C++ 20) constexpr std::chrono::month month() const noexcept; (2)(since C++ 20) constexpr std::chrono::day day() const noexcept; (3)(since C++ 20) constexpr std::chrono::month_day_last month_day_last() const(4)(since C++ 20) noexcept; Retrieves the field values stored in this year_month_day_last object. Return values 1) Returns the stored std::chrono::year value. 2) Returns the stored std::chrono::month…

std::chrono::year_month_day_last::operatorsys_days,std::chrono::year_month_day_last::operatorlocal_days – std::chrono::year_month_day_last::operatorsys_days,std::chrono::year_month_day_last::operatorlocal_days Synopsis constexpr operator std::chrono::sys_days() const noexcept; (1) (since C++20) explicit constexpr operator std::chrono::local_days() const noexcept; (2) (since C++20) Converts *this to a std::chrono::time_point representing the same date as this year_month_day_last. This is equivalent to composing a year_month_day from year(), month() and day() and converting that year_month_day to the destination type. 1) Equivalent…

std::chrono::year_month_day_last::operator+=,std::chrono::year_month_day_last::operator-= – std::chrono::year_month_day_last::operator+=,std::chrono::year_month_day_last::operator-= Synopsis constexpr std::chrono::year_month_day_last &operator+=(const std::chrono::years &dy) const noexcept; (1)(since C++ 20) constexpr std::chrono::year_month_day_last & operator+=(const std::chrono::months &dm) const noexcept; (2)(since C++ 20) constexpr std::chrono::year_month_day_last & operator-=(const std::chrono::years &dy) const noexcept; (3)(since C++ 20) constexpr std::chrono::year_month_day_last & operator-=(const std::chrono::months &dm) const noexcept; (4) (since C++20) Modifies the time point *this represents by the…

std::chrono::year_month_day_last::ok – std::chrono::year_month_day_last::ok Synopsis constexpr bool ok() const noexcept; (since C++20) Checks if *this represents a valid date. Because a year_month_day_last represents the last day of a particular month, it represents a valid date as long as the year and month are valid. Return value year().ok() && month().ok()

std::chrono::year_month_day_last – std::chrono::year_month_day_last Synopsis Defined in header <chrono> class year_month_day_last; (since C++20) The class year_month_day_last represents the last day of a specific year and month. It is a field-based time point, with a resolution of std::chrono::days, subject to the limit that it can only represent the last day of a month. std::chrono::years- and std::chrono::months-oriented arithmetic…

std::chrono::year_month_day::year_month_day – std::chrono::year_month_day::year_month_day Synopsis year_month_day() = default; (1)(since C++ 20) constexpr year_month_day(const std::chrono::year &y, const std::chrono::month &m, (2)(since C++ 20) const std::chrono::day &d) noexcept; constexpr year_month_day(const std::chrono::year_month_day_last &ymdl) noexcept; (since C++ 20) constexpr year_month_day(const std::chrono::sys_days &dp) noexcept; (since C++ 20) explicit constexpr year_month_day(const std::chrono::local_days &dp) noexcept; (since C++ 20) Constructs a year_month_day object. 1) Default…

std::chrono::year_month_day::year,std::chrono::year_month_day::month,std::chrono::year_month_day::day – std::chrono::year_month_day::year,std::chrono::year_month_day::month,std::chrono::year_month_day::day Synopsis constexpr std::chrono::year year() const noexcept; (1) (since C++20) constexpr std::chrono::month month() const noexcept; (2) (since C++20) constexpr std::chrono::day day() const noexcept; (3) (since C++20) Retrieves the year, month and day values stored in this year_month_day object. Return values 1) Returns the stored std::chrono::year value. 2) Returns the stored std::chrono::month value. 3)…

std::chrono::year_month_day::year,std::chrono::year_month_day::month, – std::chrono::year_month_day::year,std::chrono::year_month_day::month, Synopsis constexpr std::chrono::year year() const noexcept;   (1) (since C++20) constexpr std::chrono::month month() const noexcept; (2) (since C++20) constexpr std::chrono::day day() const noexcept;     (3) (since C++20) Retrieves the year, month and day values stored in this year_month_day object. Return values 1) Returns the stored std::chrono::year value. 2) Returns the stored std::chrono::month value. 3) Returns the stored std::chrono::day value.

std::chrono::year_month_day::operatorsys_days,std::chrono::year_month_day::operatorlocal_days – std::chrono::year_month_day::operatorsys_days,std::chrono::year_month_day::operatorlocal_days Synopsis constexpr operator std::chrono::sys_days() const noexcept; (1) (since C++20) explicit constexpr operator std::chrono::local_days() const noexcept; (2) (since C++20) Converts *this to a std::chrono::time_point representing the same date as this year_month_day. 1) If ok() is true, the return value holds a count of days from the std::chrono::system_clock epoch (1970-01-01) to *this. The result…

std::chrono::year_month_day::operatorsys_days,std::chrono::year_month_day::operator – std::chrono::year_month_day::operatorsys_days,std::chrono::year_month_day::operator Synopsis constexpr operator std::chrono::sys_days() const noexcept; (1)(since C++ 20) explicit constexpr operator std::chrono::local_days() const(2)(since C++ 20) noexcept; Converts *this to a std::chrono::time_point representing the same date as this year_month_day. 1) If ok() is true, the return value holds a count of days from the std::chrono::system_clock epoch (1970-01-01) to *this. The result is negative…

std::chrono::year_month_day::operator+=,std::chrono::year_month_day::operator-= – std::chrono::year_month_day::operator+=,std::chrono::year_month_day::operator-= Synopsis constexpr std::chrono::year_month_day &operator+=(const std::chrono::years &dy) const noexcept; (1)(since C++ 20) constexpr std::chrono::year_month_day & operator+=(const std::chrono::months &dm) const noexcept; (2)(since C++ 20) constexpr std::chrono::year_month_day & operator-=(const std::chrono::years &dy) const noexcept; (3)(since C++ 20) constexpr std::chrono::year_month_day & operator-=(const std::chrono::months &dm) const noexcept; (4) (since C++20) Modifies the time point *this represents by the…

std::chrono::year_month_day::ok – std::chrono::year_month_day::ok Synopsis constexpr bool ok() const noexcept; (since C++20) Checks if this year_month_day object represents a valid calendar date. Return value true if this year_month_day object represents a valid calendar date, that is, the stored year, month, and day values are all valid and the stored day value is within the number of…

std::chrono::year_month_day – std::chrono::year_month_day Synopsis Defined in header <chrono> class year_month_day; (since C++20) The class year_month_day represents a specific year, month, and day. It is a field-based time point, with a resolution of std::chrono::days. std::chrono::years- and std::chrono::months-oriented arithmetic are supported directly. An implicit conversion to and from std::chrono::sys_days allows std::chrono::days-oriented arithmetic to be performed efficiently. year_month_day…

std::chrono::year_month::year_month – std::chrono::year_month::year_month Synopsis year_month() = default; (1)(since C++ 20) constexpr year_month(const std::chrono::year &y, const std::chrono::month &m) noexcept; (2)(since C++ 20) Constructs a year_month object. 1) Default constructor leaves the year and month uninitialized. 2) Constructs a year_month object storing the year y and the month m. Notes A more convenient way to construct a…

std::chrono::year_month::year,std::chrono::year_month::month – std::chrono::year_month::year,std::chrono::year_month::month Synopsis constexpr std::chrono::year year() const noexcept; (1) (since C++20) constexpr std::chrono::month month() const noexcept; (2) (since C++20) Retrieves the year and month values stored in this year_month object. Return values 1) Returns the stored std::chrono::year value. 2) Returns the stored std::chrono::month value.

std::chrono::year_month::operator+=,std::chrono::year_month::operator-= – std::chrono::year_month::operator+=,std::chrono::year_month::operator-= Synopsis constexpr std::chrono::year_month &operator+=(const std::chrono::years &dy) const noexcept; (1)(since C++ 20) constexpr std::chrono::year_month & operator+=(const std::chrono::months &dm) const noexcept; (2)(since C++ 20) constexpr std::chrono::year_month & operator-=(const std::chrono::years &dy) const noexcept; (3)(since C++ 20) constexpr std::chrono::year_month & operator-=(const std::chrono::months &dm) const noexcept; (4) (since C++20) Modifies the time point *this represents by the…

std::chrono::year_month::ok – std::chrono::year_month::ok Synopsis constexpr bool ok() const noexcept; (since C++20) Checks if the year and month values stored in this object are valid. Return value year().ok() && month().ok()

std::chrono::year_month – std::chrono::year_month Synopsis Defined in header <chrono> class year_month; (since C++20) The class year_month represents a specific month of a specific year, but with an unspecified day. It is a field-based time point, with a resolution of std::chrono::months. year_month is a TriviallyCopyable StandardLayoutType. Member functions               constructs a year_month constructor (public member function)               accesses the…

std::chrono::year::year – std::chrono::year::year Synopsis year() = default; (since C++ 20) explicit constexpr year(int y) noexcept; (since C++ 20) Constructs a year object. 1) Default constructor leaves the year value uninitialized. 2) If y is in the range [-32767, 32767], constructs a year object holding the year value y. Otherwise the value held is unspecified.

std::chrono::year::operatorint – std::chrono::year::operatorint Synopsis explicit constexpr operator int() const noexcept; (since C++20) Returns the year value stored in *this. Return value The year value stored in *this.