std::chrono::operator+,std::chrono::operator-(std::chrono::day) (3) - Linux Manuals

std::chrono::operator+,std::chrono::operator-(std::chrono::day): std::chrono::operator+,std::chrono::operator-(std::chrono::day)

NAME

std::chrono::operator+,std::chrono::operator-(std::chrono::day) - std::chrono::operator+,std::chrono::operator-(std::chrono::day)

Synopsis

constexpr std::chrono::day operator+(const std::chrono::day& d, (1) (since C++20)
const std::chrono::days& ds) noexcept;
constexpr std::chrono::day operator+(const std::chrono::days& ds, (2) (since C++20)
const std::chrono::day& d) noexcept;
constexpr std::chrono::day operator-(const std::chrono::day& d, (3) (since C++20)
const std::chrono::days& ds) noexcept;
constexpr std::chrono::days operator-(const std::chrono::day& x, (4) (since C++20)
const std::chrono::day& y) noexcept;

1-2) Adds ds.count() days to d.
3) Subtracts ds.count() days from d.
4) Calculate the difference, in days, between two day x and y.

Return value

1-2) std::chrono::day(unsigned(d) + ds.count())
3) std::chrono::day(unsigned(d) - ds.count())
4) std::chrono::days(int(unsigned(x)) - int(unsigned(y)))

Notes

For (1-3), if the result would be outside the range [0, 255], the actual stored value is unspecified.

Example

 This section is incomplete
 Reason: no example