cause abnormal program termination
Standard C Library (libc, -lc)
() function causes abnormal program
termination to occur, unless the signal
is being caught and the signal
handler does not return.
Any open streams are flushed and closed.
() function is thread-safe. It is
unknown if it is async-cancel-safe.
() function never returns.
() function conforms to
IEEE Std 1003.1-1990
() function also conforms to
with the implementation specific
details as noted above.