
current_record(?Key)

   Succeeds if Key is the key of a recorded item.



Arguments
   Key                 Variable, atom or compound term.

Type
   Recorded Database

Description
   Used to backtrack over the keys currently recorded in the indexed
   database.  Key must be either a variable, an atom or a compound term.
   In the case of compound terms, all keys of the same name and arity are
   treated as equal.




Modes and Determinism
   current_record(+) is semidet
   current_record(-) is nondet

Modules
   This predicate is sensitive to its module context (tool predicate, see @/2).

Fail Conditions
   Fails if Key is not a current key

Exceptions
     5 --- Key is neither a variable, an atom nor a compound term.

Examples
   
   Success:
   [eclipse]: record(whiskey,jameson),
   >        record(whiskey,bushmills),
   >        record(beer,lowenbrau),
   >        record(car(bmw), 735).
   yes.
   [eclipse]: current_record(Key).
   Key = beer     More? (;)
   Key = whiskey     More? (;)
   Key = car(_g62)     More? (;)
   no (more) solution.
   Fail:
   record(whiskey,bushmills),current_record(bushmills).
   Error:
   current_record(1).                     (Error 5)
   current_record("whiskey").             (Error 5)





See Also
   is_record / 1
