1This folder provides functions that are not part of the standard C library but are part of the POSIX.1 (IEEE Standard 1003.1) standard.
2
3
4
5## NOTE
6
71. For consistency of compilation results across the different of platforms(gcc, keil, iar) , use:
8   - `#include <sys/time.h>` to instead of `#include <time.h>`
9   - `#include <sys/errno.h>` to instead of `#include <errno.h>`
10   - `#include <sys/signal.h>` to instead of `#include <signal.h>`
11
12