std::chrono...ration::zero(3)

🎀 NAME 🎀

Hey bestie 💖 welcome to the std::chrono...ration::zero(3) page from the C++ Standard Libary. std::chrono::duration::zero — literally std::chrono::duration::zero. That's the whole name, no notes, just main-character energy 👑.

🦋 Synopsis 🦋

static constexpr duration zero();           (until C++20)
static constexpr duration zero() noexcept;  (since C++20)

Returns a zero-length duration ✨.

If the representation rep of the duration requires some other implementation to return a zero-length duration, std::chrono::duration_values can be specialized to return the desired value. Lowkey powerful, ngl 🫶.

🌸 Parameters 🌸

(none) — literally nobody, bestie 🙈.

💅 Return value 💅

Returns duration(std::chrono::duration_values<rep>::zero()). Periodt 💖.

🔥 Example 🔥

This is the code, bestie — run it and watch the zeroes line up:

// Run this code

#include <chrono>
#include <ratio>

template<typename X, typename Y>
using dura = std::chrono::duration<X, Y>;

static_assert
(
    (std::chrono::hours::zero() == std::chrono::nanoseconds::zero()) &&
    (dura<short, std::nano>::zero() == dura<int, std::deci>::zero()) &&
    (dura<short, std::deca>::zero() == dura<long, std::exa>::zero()) &&
    (dura<long, std::atto>::zero().count() == dura<float, std::exa>::zero().count())
);

int main() {}

The static_assert is doing the absolute most, and it ate 🔥.

🌈 See also 🌈

• min — returns the special duration value min; [static] (public static member function) 💜
• max — returns the special duration value max; [static] (public static member function) 💜

Source/version + date: http://cppreference.com, 2024.06.10. Bye bestie — go return zero and serve absolutely nothing (duration-wise) 💅✨