c('PL_functor_arity')

Documentation
- Reference manual
  - Foreign Language Interface
    - The Foreign Include File
      - Atoms and functors
        
        PL_new_atom()
        
        PL_new_atom_mbchars()
        
        PL_atom_chars()
        
        PL_new_functor()
        
        PL_functor_name()
        
        PL_functor_arity()
        
        Atoms and atom garbage collection
- Packages

Availability:C-language interface function

size_t PL_functor_arity(functor_t f)

Return the arity of the given functor.