timespec_get(&ts, TIME_UTC); char buff[100]; strftime(buff, sizeof buff,"%D %T", std::gmtime(&ts.tv_sec)); printf("Current time: %s.%09ld UTC\n", buff, ts.tv_nsec); timespec_get的第二个参数是一个整形表达的base。目前标准只定义了TIME_UTC。 其输出如下: Current time: 12/27/...
std::timespec_get std::time_t std::tm std::to_chars std::tuple std::tuple::swap std::tuple::tuple std::tuple_cat std::tuple_element<std::pair> std::tuple_element<std::tuple> std::tuple_size<std::pair> std::tuple_size<std::tuple> std::tx_exception std::type_index std::type...
std::timespec_get std::time_t std::tm std::to_chars std::tuple std::tuple::swap std::tuple::tuple std::tuple_cat std::tuple_element<std::pair> std::tuple_element<std::tuple> std::tuple_size<std::pair> std::tuple_size<std::tuple> std::tx_exception std::type_index std::type...
const std::string getCurrentSystemTime() { auto tt = std::chrono::system_clock::to_time_t (std::chrono::system_clock::now()); struct tm* ptm = localtime(&tt); char date[60] = {0}; sprintf(date, "%d-%02d-%02d %02d:%02d:%02d", (int)ptm->tm_year + 1900,(int)ptm->tm_mon...
{po.set_exception(std::current_exception()); }return; }intmain() { std::promise<std::thread::id>p1; std::promise<std::thread::id>p2; std::future<std::thread::id>f1(p1.get_future()); std::future<std::thread::id>f2(p2.get_future()); ...
传统的C++获取时间的方法须要分平台来定义。 相信百度代码也不少。 我自己写了下,例如以下。 conststd::stringgetCurrentSystemTime(){if(PLATFORM_ANDROID||PLATFORM_IOS){structtimevals_now;structtm*p_tm;gettimeofday(&s_now,NULL);p_tm=localtime((consttime_t*)&s_now.tv_sec);chardate[60]={0};spr...
voidprocess(constWidget&lvalArg);// process lvaluesvoidprocess(Widget&&rvalArg);// process rvaluestemplate<typenameT>// template that passesvoidlogAndProcess(T&¶m)// param to process{autonow=// get current timestd::chrono::system_clock::now();makeLogEntry("Calling 'process'",now);proces...
#include <iostream> #include <chrono> #include <format> int main() { // get the current time auto now = std::chrono::system_clock::now(); // floor till the start of day auto start_of_day = std::chrono::floor<std::chrono::days>(now); // round time till nearest seconds aut...
I'm using the following work-around now to get the above program compiling: template<> struct fmt::formatter<std::chrono::utc_time<std::chrono::nanoseconds>> : public formatter<std::string> { template<typename FormatContext> auto format(const std::chrono::utc_time<std::chrono::nanoseconds...
{// Get the current timeautonow = std::chrono::system_clock::now();// Serialize the time to a stringstd::string serialized_time =serialize(now); std::cout <<"Serialized time: "<< serialized_time << std::endl;// Deserialize the string back to a time_pointauto...