asserta/1asserta(Clause) asserta((Head:-Body))Asserts a clause as the first one for an object's dynamic predicate. If the predicate is not already declared, then a dynamic predicate declaration is added to the object.
asserta(+clause)
- Clause is a variable:
instantiation_error- Head is a variable:
instantiation_error- Head is a neither a variable nor a callable term:
type_error(callable, Head)- Body cannot be converted to a goal:
type_error(callable, Body)- The predicate indicator of Head is that of a private predicate:
permission_error(modify, private_predicate, Head)- The predicate indicator of Head is that of a protected predicate:
permission_error(modify, protected_predicate, Head)- The predicate indicator of Head is that of a static predicate:
permission_error(modify, static_predicate, Head)
- To assert a clause as the first one for any dynamic predicate in this:
asserta(Clause)- To assert a clause as the first one for any public or protected dynamic predicate in self:
::asserta(Clause)- To assert a clause as the first one for any public dynamic predicate in an object:
Object::asserta(Clause)
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Last updated on: July 4, 2000