[comp.lang.c] strerror

maart@cs.vu.nl (Maarten Litmaath) (07/03/90)

In article <MEISSNER.90Jul3102104@osf.osf.org>,
	meissner@osf.org (Michael Meissner) writes:
)...
)char *
)strerror(e)
){
)  extern int	errno;
)  extern int	sys_nerr;
)  extern char	*sys_errlist[];
)
)  if (e < 0 || e >= sys_nerr)
)      return "Unknown error";
)
)  return sys_errlist[e];
)}
)...

Always give as much information as possible!
--------------------cut here--------------------
char	*strerror()
{
	extern	int	errno, sys_nerr;
	extern	char	*sys_errlist[];
	static	char	buf[32];

	if ((unsigned) errno < sys_nerr)
		return sys_errlist[errno];
	sprintf(buf, "Unknown error %d", errno);
	return buf;
}
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