C++: How to sleep for a nanosecond?
c++, sleep, windows
Solution
You should also notice that there is the scheduler, which probably allows no sleeps that are shorter than an timeslice (somewhat around 4 ms - 10 ms, depending on your windows and machine). sleeping less than that is not possible on
Here are some (quite old) research on that issue windows.
This article suggests using Win32 `timeBeginPeriod()` to achieve that.
Problem
Possible Duplicate: Sleep Less Than One Millisecond How can I make a program sleep for a nanosecond? I searched the Internet, and I found several ways to sleep, but: windows.h's `Sleep()` sleeps only for milliseconds. `ctime`'s `nanosleep()` is only for POSIX systems, and I'm using Windows. I also tried this: ``` int usleep(long usec) { struct timeval tv; tv.tv_sec = usec/1000000L; tv.tv_usec = usec%1000000L; return select(0, 0, 0, 0, &tv); }; ``` But Code::Blocks says: ``` obj\Release\main.o:main.cpp|| undefined reference to `select@20'| ``` I tried many things, but everything failed. What should I do?