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ndbm.h (3)
  • ndbm.h (3) ( Solaris man: Библиотечные вызовы )
  • >> ndbm.h (3) ( POSIX man: Библиотечные вызовы )
    •  

    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 that includes 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 size_t type shall be defined as described in <stddef.h> .

    The <ndbm.h> header shall define the DBM type.

    The following constants shall be defined 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 mode_t type shall be defined 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 IEEE Std 1003.1-2001, dbm_clearerr()  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .

     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT

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