*** POSIX TEST ITIMER ***
getitimer -- bad which - EINVAL 
getitimer -- NULL pointer - EFAULT 
getitimer -- ITIMER_REAL - ENOSYS 
getitimer -- ITIMER_VIRTUAL - ENOSYS 
getitimer -- ITIMER_PROF - ENOSYS 
setitimer -- bad which - EINVAL 
setitimer -- NULL value pointer - EFAULT 
setitimer -- NULL value pointer - EFAULT 
setitimer -- ITIMER_REAL - ENOSYS 
setitimer -- ITIMER_VIRTUAL - ENOSYS 
setitimer -- ITIMER_PROF - ENOSYS 
*** END OF POSIX TEST ITIMER ***