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