DOPEN C-3





Copyright (C) 1994-95 Conetic Software Systems, Inc. All names, products, and services mentioned are the trademarks of their respective organizations.



NAME


dopen - open RMSfile

SYNOPSIS


#include 

DFILE *dopen (filename, mode)
char *filename;
char *mode;

DESCRIPTION


Dopen opens the RMSfile named filename for future I/O. Dopen returns a
pointer to a control block to identify the RMSfile in subsequent 
operations.

Filename is the pathname of the RMSfile to open.

Mode is a character string that states the types of operations to be 
done on the RMSfile. Mode may have one of the following values:

Modes  Operations 
"r"  open for reading 
"w"  zero RMSfile records, open for writing 
"a"  open for writing 
"u"  open for both reading and writing 

SEE  ALSO        

dlopen(C-3), dclose(C-3)
Chapter 4, RMS Programming Guide

DIAGNOSTICS          

Dopen returns the pointer NULL if filename cannot be accessed.