(3)high_resolution_clock:当前系统实现的一个高分辨率时钟。 第二个模板函数参数用来表示时间的计量单位(特化的std::chrono::duration<> ) 时间点都有一个时间戳,即时间原点。chrono库中采用的是Unix的时间戳1970年1月1日 00:00。所以time_point也就是距离时间戳(epoch)的时间长度(duration)。 三、实践 知道...
#include <boost/date_time/gregorian/gregorian.hpp> #include <iostream> using namespace std; using namespace boost::gregorian; int main() { int startYear, endYear; cout << "Please input the start year: "; cin >> startYear; cout << "Please input the end year: "; cin >> endYear; ...
以下是强大的C++和boost程序库的舞台: #include<boost/date_time/gregorian/gregorian.hpp>#include<iostream>usingnamespacestd;usingnamespaceboost::gregorian;intmain(){intstartYear,endYear;cout<<"Please input the start year: ";cin>>startYear;cout<<"Please input the end year: ";cin>>endYear;dates...
Boost Serialization and MFC: “cannot open file 'libboost_serialization-vc141-mt-s-x32-1_69.lib' ” BringWindowToTop() does not BSCMAKE : error BK1506: Cannot open .sbr file Buffer overwrite, HEAP CORRUPTION DETECTED bugfix program error help. Build Error: "Error: Failed to write to log ...
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duration = (double)(finish - start) / CLOCKS_PER_SEC; printf( "%f seconds\n", duration ); system("pause"); } 在笔者的机器上,运行结果如下: Time to do 10000000 empty loops is 0.03000 seconds 上面我们看到时钟计时单元的长度为1毫秒,那么计时的精度也为1毫秒,那么我们可不可以通过改变CLOCKS_PE...
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最近在做了移动端活动页面，遇到了 H5 适配的问题，其实也有 pxtorem 来做自动转换，但是组内讨论过后，还是决定自己计算 rem ，其实 rem 已经过时了，目前比较流行的是 ViewPort 了。组内一致决定了，那就只能这样干了。
motion into analog signals compatible with the XBox 360 controller. The microcontroller code has been written in 'C' using theBoostC compilerso that it can perform all the necessary signal processing and calculations in real time. You can find the details and video of the controller in action...