1. sleep function;
Check out the Boost.Thread library. You can use the static function boost::thread::sleep to tell the current thread to sleep. http://www.boost.org/doc/libs/1_37_0/doc/html/thread/thread_management.html#...
2. get current working directory;
Check out the Boost.Filesystem library. Specifically, you probably want to look at boost::filesystem::initial_path or boost::filesystem::current_path. http://www.boost.org/doc/libs/1_37_0/libs/filesystem/doc/reference.html#Attr...
3. get current system time;
Check out the Boost.Date_Time library. You can construct a boost::posix_time::ptime object from boost::posix_time::second_clock::local_time http://www.boost.org/doc/libs/1_37_0/doc/html/date_time/posix_time.html#ptim...
4. get file separator or directory separator;
Check out the Boost.Filesystem library. You can use boost::filesystem::path and many related utility functions to portably compose and decompose paths. Additionally, you can retrieve the path string in a portable or system-specific format. http://www.boost.org/doc/libs/1_37_0/libs/filesystem/doc/index.htm Hope This Helps, Justin