SWI-Prolog -- API-function PL_unregister_atom

Documentation
- Reference manual
  - Foreign Language Interface
    - The Foreign Include File
      - Atoms and functors
        
        Atoms and atom garbage collection
        
        PL_register_atom()
        
        PL_unregister_atom()
- Packages

Availability:C-language interface function

void PL_unregister_atom(atom_t atom)

Decrement the reference count of the atom. If the reference count drops below zero, an assertion error is raised.