
retract_all(+Head)

   Removes from the database all clauses whose heads match Head

Arguments
   Head                Atom, variable or compound term.

Type
   Obsolete

Description
An obsolete synonym for retractall/1.

Modes and Determinism
   retract_all(+) is det

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

Exceptions
     4 --- Head is not instantiated
     5 --- Head is not a callable term
    63 --- Procedure is not dynamic
    70 --- Procedure is undefined

See Also
   retractall / 1
