.BG
.VE $Header: /usr3/s/current/s/.help/RCS/fatal,v 1.2 83/12/30 19:28:20 rab Exp $
.FN fatal
.FN message
.FN warning
.TL
fatal warning message: Informative Message Functions
.CS
fatal(msg)
warning(msg)
message(msg)
.PP
.AG msg
character vector that is printed one element per line.
The function `fatal' prepends "Fatal Error:" to the first line of `msg',
and causes abnormal termination of the expression it
is involved in.  This can be used to terminate the execution of
macros, source files, etc.
The function `warning' prepends "Warning:" to the first line of `msg'.
Function `message' simply prints `msg'.
.EX
message( instructions )
if(any(NA(x))) fatal("NAs are not allowed in x")
.KW basic*
.WR
