lst-0032-book.cpp
// https://godbolt.org/z/5snr1hq9b
#include <chrono>
void sleep(std::chrono::seconds s) { // takes seconds as duration
/* ... */
}
/* ... */
int main() {
using namespace std::chrono; // make literals available
sleep(10min); // wait for 10 minutes, i.e., 600 seconds
sleep(10ms); // (ERR) 10 milliseconds? Cannot be represented with seconds.
}