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50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
#pragma once
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#include <chrono>
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#include <string>
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#include <sstream>
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#include <cctz/time_zone.h>
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namespace ext
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{
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inline std::string to_string(const std::time_t & time)
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{
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return cctz::format("%Y-%m-%d %H:%M:%S", std::chrono::system_clock::from_time_t(time), cctz::local_time_zone());
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}
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template <typename Clock, typename Duration = typename Clock::duration>
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std::string to_string(const std::chrono::time_point<Clock, Duration> & tp)
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{
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// Don't use DateLUT because it shows weird characters for
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// TimePoint::max(). I wish we could use C++20 format, but it's not
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// there yet.
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// return DateLUT::instance().timeToString(std::chrono::system_clock::to_time_t(tp));
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auto in_time_t = std::chrono::system_clock::to_time_t(tp);
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return to_string(in_time_t);
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}
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template <typename Rep, typename Period = std::ratio<1>>
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std::string to_string(const std::chrono::duration<Rep, Period> & duration)
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{
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auto seconds_as_int = std::chrono::duration_cast<std::chrono::seconds>(duration);
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if (seconds_as_int == duration)
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return std::to_string(seconds_as_int.count()) + "s";
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auto seconds_as_double = std::chrono::duration_cast<std::chrono::duration<double>>(duration);
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return std::to_string(seconds_as_double.count()) + "s";
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}
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template <typename Clock, typename Duration = typename Clock::duration>
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std::ostream & operator<<(std::ostream & o, const std::chrono::time_point<Clock, Duration> & tp)
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{
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return o << to_string(tp);
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}
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template <typename Rep, typename Period = std::ratio<1>>
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std::ostream & operator<<(std::ostream & o, const std::chrono::duration<Rep, Period> & duration)
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{
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return o << to_string(duration);
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}
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}
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