VMS Help CC, Run-time functions, raise  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Generates a specified software signal.  Generating a signal causes
  the action routine established by the signal, ssignal, or sigvec
  function to be invoked.

  Syntax:

       #include <signal.h>

       int raise(int sig); (ANSI C)

       int raise(int sig[, int sigcode]); (Compaq C Extension)