std::chrono::hh_mm_ss<Duration>::hh_mm_ss

 

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std::chrono::hh_mm_ss

Member functions

hh_mm_ss::hh_mm_ss

hh_mm_ss::is_negativehh_mm_ss::hourshh_mm_ss::minuteshh_mm_ss::secondshh_mm_ss::subseconds

hh_mm_ss::operator precisionhh_mm_ss::to_duration

Non-member functions

operator<<

Helper classes

formatter<std::chrono::hh_mm_ss>

 

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()).

Parameters

d

-

the duration to be broken down

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