Copyright (C) 1990, Digital Equipment Corporation           
 All rights reserved.                                        
 See the file COPYRIGHT for a full description.              

Last modified on Mon Feb 24 13:40:14 PST 1992 by kalsow modified on Mon Aug 13 23:56:36 1990 by muller


FROM Ctypes IMPORT int;
We cannot access errno directly as a variable, because on some systems it is a C macro that expands to something more complicated.

The errno value is preserved across thread switches.

<*EXTERNAL "Cerrno__GetErrno"*>
PROCEDURE GetErrno(): int;

<*EXTERNAL "Cerrno__SetErrno"*>
PROCEDURE SetErrno(e: int);

END Cerrno.