std::chrono::hh_mm_ss<Duration>::hh_mm_ss
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constexpr hh_mm_ss() noexcept : hh_mm_ss{Duration::zero()} {}
(1)
constexpr explicit hh_mm_ss( Duration d );
(2)
Constructs a hh_mm_ss object.
1) Constructs a
hh_mm_ss object corresponding to Duration::zero().2) Constructs a
hh_mm_ss object corresponding to d:
- is_negative() returns d < Duration::zero().
- hours() returns std::chrono::duration_cast <std::chrono::hours >(abs(d)).
- minutes() returns std::chrono::duration_cast <std::chrono::minutes >(abs(d) - hours()).
- seconds() returns
std::chrono::duration_cast <std::chrono::seconds >(abs(d) - hours() - minutes()). - subseconds() returns abs(d) - hours() - minutes() - seconds() if std::chrono::treat_as_floating_point_v <precision::rep> is true; otherwise it returns std::chrono::duration_cast <precision>(abs(d) - hours() - minutes() - seconds()).
[edit] Parameters
d
-
the duration to be broken down
[edit] Example
Run this code
#include <chrono> #include <print> int main() { std::println ("Default constructor: {}", std::chrono::hh_mm_ss <std::chrono::minutes >{}); std::chrono::time_point now = std::chrono::system_clock::now (); std::chrono::hh_mm_ss time_of_day{now - std::chrono::floor <std::chrono::days >(now)}; std::println ("The time of day is: {}", time_of_day); }
Possible output:
Default constructor: 00:00:00 The time of day is: 12:13:14.151617189