libdb.c File Reference

Contains the C version of the Prolog database. More...

#include <stdio.h>
#include "libdb.h"
#include "libicl_private.h"

Go to the source code of this file.

Defines
#define	EXPORT_BORLAND
#define	EXPORT_MSCPP
#define	DB_MAGIC_COOKIE   123456
Functions
int	OAA_hash_function (char *str)
	Hash function: simple sum of characters modulo hash table size.
int	db_IsValid (ICLDatabase *db)
	Returns TRUE if Database has been properly initialized.
EXPORT_MSCPP ICLDatabase *EXPORT_BORLAND	db_NewDB ()
	Returns a pointer to a new database structure.
EXPORT_MSCPP int EXPORT_BORLAND	db_FreeDB (ICLDatabase *db)
	Frees all space used by a database.
EXPORT_MSCPP int EXPORT_BORLAND	db_Assert (ICLDatabase *db, ICLTerm *term, ICLTerm *params)
	Adds a copy of an ICL term to the database.
EXPORT_MSCPP int EXPORT_BORLAND	db_Retract (ICLDatabase *db, ICLTerm *term, ICLTerm *params)
	Removes an ICL term from the database.
EXPORT_MSCPP int EXPORT_BORLAND	db_Solve (ICLDatabase *db, ICLTerm *term, ICLTerm *params, ICLTerm **answers)
	Searches the database for matches to term.
EXPORT_MSCPP int EXPORT_BORLAND	db_PrintDB (ICLDatabase *db)
	Writes out the entire database.

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Detailed Description

Contains the C version of the Prolog database.

Definition in file libdb.c.

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Define Documentation

#define DB_MAGIC_COOKIE   123456

Definition at line 43 of file libdb.c.

#define EXPORT_BORLAND

Definition at line 27 of file libdb.c.

#define EXPORT_MSCPP

Definition at line 32 of file libdb.c.

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Function Documentation

EXPORT_MSCPP int EXPORT_BORLAND db_Assert	(	ICLDatabase *	db,
		ICLTerm *	term,
		ICLTerm *	params
	)

Adds a copy of an ICL term to the database.

Parameters may include "at_beginning" (boolean parameter).

Returns:

TRUE if success

Definition at line 143 of file libdb.c.

EXPORT_MSCPP int EXPORT_BORLAND db_FreeDB

(

ICLDatabase *

db

)

Frees all space used by a database.

Returns:

TRUE if success

Definition at line 112 of file libdb.c.

int db_IsValid

(

ICLDatabase *

db

)

Returns TRUE if Database has been properly initialized.

Definition at line 74 of file libdb.c.

EXPORT_MSCPP ICLDatabase* EXPORT_BORLAND db_NewDB

(

)

Returns a pointer to a new database structure.

Definition at line 93 of file libdb.c.

EXPORT_MSCPP int EXPORT_BORLAND db_PrintDB

(

ICLDatabase *

db

)

Writes out the entire database.

Returns:

TRUE if success

Definition at line 292 of file libdb.c.

EXPORT_MSCPP int EXPORT_BORLAND db_Retract	(	ICLDatabase *	db,
		ICLTerm *	term,
		ICLTerm *	params
	)

Removes an ICL term from the database.

Parameters may include "do_all" (boolean parameter).

Returns:

TRUE if success

Definition at line 184 of file libdb.c.

EXPORT_MSCPP int EXPORT_BORLAND db_Solve	(	ICLDatabase *	db,
		ICLTerm *	term,
		ICLTerm *	params,
		ICLTerm **	answers
	)

Searches the database for matches to term.

Parameters may include "solution_limit" (integer parameter).

Returns:

TRUE if success

Definition at line 234 of file libdb.c.

int OAA_hash_function

(

char *

str

)

Hash function: simple sum of characters modulo hash table size.

Definition at line 57 of file libdb.c.

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