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Man page of ndbm.h
ndbm.h
Section: POSIX Programmer's Manual (0P)
Updated: 2013
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PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
NAME
ndbm.h
--- definitions for ndbm database operations
SYNOPSIS
#include <ndbm.h>
DESCRIPTION
The
<ndbm.h>
header shall define the
datum
type as a structure, which shall include at least the following members:
-
void *dptr A pointer to the application's data.
size_t dsize The size of the object pointed to by dptr.
The
<ndbm.h>
header shall define the
size_t
type as described in
<stddef.h>.
The
<ndbm.h>
header shall define the
DBM
type.
The
<ndbm.h>
header shall define the following symbolic constants as possible
values for the
store_mode
argument to
dbm_store():
- DBM_INSERT
-
Insertion of new entries only.
- DBM_REPLACE
-
Allow replacing existing entries.
The following shall be declared as functions and may also be defined as
macros. Function prototypes shall be provided.
-
int dbm_clearerr(DBM *);
void dbm_close(DBM *);
int dbm_delete(DBM *, datum);
int dbm_error(DBM *);
datum dbm_fetch(DBM *, datum);
datum dbm_firstkey(DBM *);
datum dbm_nextkey(DBM *);
DBM *dbm_open(const char *, int, mode_t);
int dbm_store(DBM *, datum, datum, int);
The
<ndbm.h>
header shall define the
mode_t
type through
typedef,
as described in
<sys/types.h>.
The following sections are informative.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
<stddef.h>,
<sys_types.h>
The System Interfaces volume of POSIX.1-2008,
dbm_clearerr()
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
http://www.unix.org/online.html .
Any typographical or formatting errors that appear
in this page are most likely
to have been introduced during the conversion of the source files to
man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
Index
- PROLOG
-
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- APPLICATION USAGE
-
- RATIONALE
-
- FUTURE DIRECTIONS
-
- SEE ALSO
-
- COPYRIGHT
-
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