ndbm.h - definitions for ndbm database operations
[XSI] #include <ndbm.h>
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():
- Insertion of new entries only.
- 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>.
<stddef.h> , <sys/types.h>
First released in Issue 4, Version 2.
References to the definitions of size_t and mode_t are added to the DESCRIPTION.
This reference page is clarified with respect to macros and symbolic constants.
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