<signal.h>
The <signal.h> include file defines
the values for signals and declares the signal() and raise() functions.
The <signal.h> include file also
defines the following macros:
SIGABRTSIGALLSIG_DFL |
SIG_ERRSIGFPESIG_IGN |
SIGILLSIGINTSIGIO |
SIGOTHERSIGSEGVSIGTERM |
SIGUSR1SIGUSR2 |
<signal.h> also declares the function _GetExcData,
an IBM® i extension to the C
standard library.