std::unique_lock<std::mutex> lck(mtx); while (cv.wait_for(lck,std::chrono::seconds(1))==std::cv_status::timeout) { std::cout << '.' << std::endl; } std::cout << "You entered: " << value << '\n'; th.join(); return 0; } 输出: Please, enter an integer (I'll ...
6 using namespace std::chrono_literals; 7 8 std::future<int> foo() { 9 std::cout << "call foo\n"; 10 std::this_thread::sleep_for(3s); 11 co_return 5; 12 } 13 14 std::future<std::future<int>> bar() { 15 std::cout << "call bar\n"; 16 std::cout << "before foo...
#include <iostream> #include <chrono> #include <string> template <typename TimePoint> std::string to_string(const TimePoint& time_point) { return std::to_string(time_point.time_since_epoch().count()); } int main() { using namespace std::literals::chrono_literals; using Sec = std::...
void setAlarm(std::chrono::steady_clock::time_point t,enum class Sound s, std::chrono::seconds d); enum class Sound {Beep,Siren,Whistle}; //使用lambda创建一个函数对象,设置一小时后响30秒的警报器 auto setSoundL = [](Sound s) { using namespace std::chrono; using namespace std::lite...
using namespace std::chrono_literals; // ns, us, ms, s, h, etc. using std::chrono::system_clock; sleep_for(10ns); sleep_until(system_clock::now() + 1s); } Keep in mind that the length of a sleep can vary based on the implementation. Even if you request a sleep for 10 nan...
//using namespace std::chrono_literals; const char *wrapperFileKey = "wrapper.file"; const char *wrapperFileClass = "wrapper.class"; const char *WrapperFile = "wrapper"; const char *WrapperClass = "Wrapper"; const char *PythonSo = "libpython3.so"; wrapper...
build fails when I run compile.sh Error message: libserial/test/SerialPortUnitTests.cpp:855:26: error: ‘std::literals’ has not been declared using namespace std::literals::chrono_literals ; ^ compilation terminated due to -Wfatal-errors...
#include <iostream> #include <chrono> #include <thread> #include <mutex> #include <condition_variable> using namespace std::chrono_literals; int f() { std::this_thread::sleep_for(10s); //change value here to less than 1 second to see Success return 1; } int f_wrapper() { std::...
// before: auto duration = std::chrono::hours(2) + std::chrono::minutes(5); // after: using namespace std::chrono_literals; auto duration = 2h + 5min; 时间点 时钟的 now 函数返回的值就是一个时间点,时间点包含了时钟和时长两个信息。 类模板 std::chrono::time_point 表示时间中的一...
#include <mutex> @@ -53,7 +55,9 @@ using android::base::WriteStringToFile;using namespace std::chrono_literals;#define PROCESSGROUP_CGROUP_PROCS_FILE "/cgroup.procs" #define PROCESSGROUP_CGROUP_PROCS_FILE "cgroup.procs" #define PROCESSGROUP_CGROUP_KILL_FILE "cgroup.kill" ...