time_point( const time_point<Clock, Duration2>& t ); (C++11 起) (C++14 起为 constexpr) 从数个可选数据源之一构造新的 time_point。 1) 默认构造函数,创建表示 Clock 的纪元(即 time_since_epoch() 为零)的 time_point。2) 构造位于 Clock 的纪元加上
t-atime_pointto convert from Example Run this code #include <chrono>#include <iostream>usingClock=std::chrono::steady_clock;usingTimePoint=std::chrono::time_point<Clock>;voidprint_ms(constTimePoint&point){usingMs=std::chrono::milliseconds;constClock::durationsince_epoch=point.time_since_epoch(...
chrono 库,灵活汇集了一些以各种精度跟踪时间的类型(如std::chrono::time_point)。 C 风格日期和时间工具(如std::time)。 chrono库(C++11 起) chrono库定义数种主要类型以及工具函数和常用 typedef。 时钟 时间点 时长 日历 时区 (C++20 起) 时钟 ...
C-style date and time std::chrono::time_point Member functions time_point::time_point time_point::time_since_epoch time_point::operator+=time_point::operator-= time_point::operator++time_point::operator-- (C++20)(C++20) time_point::min time_point::max Non-member functions operator+opera...
#include <chrono>#include <iostream>usingClock=std::chrono::high_resolution_clock;usingTimePoint=std::chrono::time_point<Clock>;voidprint_ms(constTimePoint&point){usingMs=std::chrono::milliseconds;constClock::durationsince_epoch=point.time_since_epoch();std::cout<<std::chrono::duration_cast<...
Floating-point environment(C++11) complex−valarray Date and time library Calendar(C++20)−Time zone(C++20) Input/output library Print functions(C++23) Stream-based I/O−I/O manipulators basic_istream−basic_ostream Synchronized output(C++20) ...
Floating-point environment(C++11) complex−valarray Date and time library Calendar(C++20)−Time zone(C++20) Input/output library Print functions(C++23) Stream-based I/O−I/O manipulators basic_istream−basic_ostream Synchronized output(C++20) ...
Floating-point environment(C++11) complex−valarray Date and time library Calendar(C++20)−Time zone(C++20) Input/output library Print functions(C++23) Stream-based I/O−I/O manipulators basic_istream−basic_ostream Synchronized output(C++20) ...
Date and time library Localization library Input/output library Algorithms library Numerics library Common mathematical functions Floating-point environment (C99) Pseudo-random number generation Complex number arithmetic (C99) Type-generic math (C99) Bit manipulation (C23) Checked integer arithmetic ...
Date and time library Localization library Input/output library Algorithms library Numerics library Common mathematical functions Floating-point environment (C99) Pseudo-random number generation Complex number arithmetic (C99) Type-generic math (C99) Bit manipulation (C23) Checked integer arithmetic ...