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
#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();std::cout<<std::chrono::duration_cast<Ms>(since...
If you want to set the thread count at runtime, there is no convenient way... But here is how.svr.new_task_queue = [] { return new ThreadPool(12); }; You can also provide an optional parameter to limit the maximum number of pending requests, i.e. requests accept()ed by the ...
time_point&operator-=(constduration&d); (2)(since C++11) (constexpr since C++17) Modifies the time point by the given duration. 1)Applies the offsetdtopt. Effectively,dis added to the internally stored durationd_asd_+=d. 2)Applies the offsetdtoptin negative direction. Effectively,dis subt...
* system_clock::time_point -> timestamp * KeyValueIterable -> attributes * Key value iterable container -> attributes * span<pair<string_view, AttributeValue>> -> attributes(return type of MakeAttributes) */template<class...ArgumentType>voidEmitLogRecord(nostd::unique_ptr<LogRecord>&&log_re...
1976年Rossi和Reid将停留时问(Duration Time)作为实验动物的偏好指标,到目前为比他们的实验流程被大家认同,并且不断进行修改和完善,自20世纪80年代以来CPP实验在药物滥用研究领域得到广泛应用。 1.1实验原理 根据巴甫洛夫的条件反射学说,如果把奖赏刺激与某个特定的非奖赏性条件刺激(如某特定环境)反复练习之后,后者便...
( LPTSTR );/// Purpose:// Entry point for the process/// Parameters:// None/// Return value:// None, defaults to 0 (zero)//int__cdecl _tmain(intargc, TCHAR *argv[]) {// If command-line parameter is "install", install the service.// Otherwise, the service is probably being...
#ifdef _M_IX86//Clear the x87 exception flags. Any other floating point initialization//should already have taken place before this function is called._asm { fnclex }#endif#ifdef _RTC _RTC_Initialize(); atexit(_RTC_Terminate);#endifif(argv_policy::configure_argv() !=0) ...
GMP - A C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. [LGPL3 & GPL2] Klein - A fast, SIMD-optimized C++17 Geometric Algebra library for point, line, and plane projections, intersections, joins, rigid-body motion, and...
// Mount / to ./www directoryautoret = svr.set_mount_point("/","./www");if(!ret) {// The specified base directory doesn't exist...}// Mount /public to ./www directoryret = svr.set_mount_point("/public","./www");// Mount /public to ./www1 and ./www2 directoriesret =...