std::liter...o_literals(3)

💖 NAME 💖

okay bestie, welcome to the std::liter...o_literals(3) page — this one lives in the Library Functions Manual and its whole name is std::literals::chrono_literals ✨

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🌸 SYNOPSIS 🌸

🎀 Functions 🎀

• constexpr chrono::day operator''d (unsigned long long __d) noexcept — the literal suffix that hands you a chrono::day object, no cap.
• template<char... _Digits> constexpr chrono::hours operator''h () — literal suffix for durations of type std::chrono::hours.
• constexpr chrono::duration< long double, ratio< 3600, 1 > > operator''h (long double __hours) — literal suffix for durations that are hours but make it non-integer 💅
• template<char... _Digits> constexpr chrono::minutes operator''min () — literal suffix for durations of type std::chrono::minutes.
• constexpr chrono::duration< long double, ratio< 60, 1 > > operator''min (long double __mins) — literal suffix for durations representing non-integer minutes.
• template<char... _Digits> constexpr chrono::milliseconds operator''ms () — literal suffix for durations of type std::chrono::milliseconds.
• constexpr chrono::duration< long double, milli > operator''ms (long double __msecs) — literal suffix for durations representing non-integer milliseconds.
• template<char... _Digits> constexpr chrono::nanoseconds operator''ns () — literal suffix for durations of type std::chrono::nanoseconds.
• constexpr chrono::duration< long double, nano > operator''ns (long double __nsecs) — literal suffix for durations representing non-integer nanoseconds.
• template<char... _Digits> constexpr chrono::seconds operator''s () — literal suffix for durations of type std::chrono::seconds.
• constexpr chrono::duration< long double > operator''s (long double __secs) — literal suffix for durations representing non-integer seconds.
• template<char... _Digits> constexpr chrono::microseconds operator''us () — literal suffix for durations of type std::chrono::microseconds.
• constexpr chrono::duration< long double, micro > operator''us (long double __usecs) — literal suffix for durations representing non-integer microseconds.
• constexpr chrono::year operator''y (unsigned long long __y) noexcept — the literal suffix for creating chrono::year objects 🗓️

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🦋 Detailed Description 🦋

it's giving ISO C++ 2014 namespace energy — this is the namespace that holds all the suffixes for duration literals 🫶

so like, these suffixes let you build chrono::duration values with tick periods of hours, minutes, seconds, milliseconds, microseconds or nanoseconds. for example, std::chrono::seconds(5) can be written as 5s once you've made the suffix visible in the current scope. you make the suffixes visible with a using-directive or using-declaration, like one of these iconic options:

• using namespace std::chrono_literals;
• using namespace std::literals;
• using namespace std::chrono;
• using namespace std;
• using std::chrono_literals::operator""s;

the result of these suffixes on an integer literal is one of the standard typedefs, such as std::chrono::hours. the result on a floating-point literal is a duration type with the specified tick period and an unspecified floating-point representation — for example, 1.5e2ms might be equivalent to chrono::duration<long double, chrono::milli>(1.5e2) ✨

⭐ Since ⭐

C++14 — she's been here a minute and she ate 🔥

👑 Author 👑

Generated automatically by Doxygen for libstdc++ from the source code. the robots wrote this one, we just added the sparkle 🙈

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reminder bestie: using namespace std; is a whole vibe in a tiny file but a menace in a big one — it's literally listed up there as a way to do it, so do with that information what you will 💀

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that's the whole page fr fr 💖 this one comes to you from libstdc++ (the footer's other half is just the page title again, no date on the tin, so we're keeping it cute and undated) — mwah, go write some 5s and slay 🎀✨🦋