sleep in c 2b 2b linux

1#include <unistd.h>
2 sleep(10);

1#include <time.h>
2
3int main(int argc, char const *argv[])
4{
5    sleep(10);	// wait for 10s
6
7    return 0;
8}

1#if __WIN32
2#include <Windows.h>
3#else
4#include <unistd.h>
5#endif