auto t1 = std::chrono::high_resolution_clock::now(); double result = std::accumulate(v.begin(), v.end(), 0.0); auto t2 = std::chrono::high_resolution_clock::now(); std::chrono::duration<double, std::milli> ms = t2 - t1; std::cout << std::fixed << "std::accumulat...
Class std::chrono::high_resolution_clock represents the clock with the smallest tick period provided by the implementation. It may be an alias of std::chrono::system_clock or std::chrono::steady_clock, or a third, independent clock. std::chrono::high_resolution_clock meets the requirements ...
high_resolution_clock没有一个可移植的时代。可能是1970年。可能是当你的设备启动的时候。因此，在打印...
std::chrono::steady_clock meets the requirements of TrivialClock. steady_clock正如其名,是稳定的。适合用来测量时间间隔。 high_resolution_clock Class std::chrono::high_resolution_clock represents the clock with the smallest tick period provided by the implementation. It may be an alias of std::ch...
time_point封装了这个时代以来的时间。对于high_resolution_clock或system_clock以外的任何其他时钟，时代并...
转换为毫秒精度的 64 位时间戳。这是数据之间的一些序列化所必需的。稍后我需要将这些时间戳转换回std::chrono::time_point<std::chrono::high_resolution_clock>以便进一步加工。在 C++11 中执行此操作的正确方法是什么? 请您参考如下方法: 将毫秒数转换为持续时间并将其添加到纪元time_point: ...
C++打印chrono::time_point<chrono::high_resolution_clock>可读我有自纪元以来的纳秒数,我想把它打印出来,以便于阅读。 我发现的在线打印time_point的示例是使用system_clock,然后转换为std::time_t。 但是,我使用的是HIGH_RESOLUTION_CLOCK(因为是纳秒),因此我很难理解如何打印它。 考虑到我处理的是纳秒,最好的...
time_point其实是⼀个模板类，⼯作时需要clock的帮助，可以是system_clock、monotonic_clock、high_resolution_clock 这⾥使⽤system_clock 下⾯的代码简单写了⼀下使⽤⽅法，⽐较⽔直接看代码吧 #include "pch.h"#include <string> #include <sstream> #include <iostream> #include <chrono> #...
staticinlineint32timeSeed(){usingnamespacechrono;staticint32 count =0;typedefhigh_resolution_clock::time_pointTimePoint;typedefTimePoint::duration Duration;TimePointnow = high_resolution_clock::now(); Duration sinceEpoch = now.time_since_epoch(); ...
#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<...