mdbm_exists

NAME

mdbm_exists - check the validity of a handle or existence of a key in a mdbm database.

SYNOPSIS

varargs int mdbm_exists(int handle, string key)

DESCRIPTION

When called with a "handle" only this kfun will return one if the "handle" given corresponds to an open mdbm database, zero otherwise.

When called with both a "handle" and a key this kfun checks for the existence of such a key in a mdbm database that has previously been opened by a call to the mdbm_open() kfun. The "handle" returned by that kfun is used as an argument to this kfun.

Zero is returned to indicate failure, one to indicate success.

SEE ALSO

mdbm_open, mdbm_close, mdbm_store, mdbm_fetch, mdbm_delete, mdbm_firstkey, mdbm_nextkey, mdbm_reorganize

HTMLised 1998 Greg Lewis (glewis@maths.adelaide.edu.au)