SWI-Prolog -- API-function PL_atom

Did you know ...

Search Documentation:

PL_atom_wchars()

HOME
DOWNLOAD
DOCUMENTATION
- Manual
- Packages
- FAQ
- Command line
- PlDoc
- Bluffers▶
- License
- Publications
- Rev 7 Extensions
TUTORIALS
- Beginner▶
- Advanced▶
- Web applications▶
- Semantic web▶
  - ClioPatria
  - RDF namespaces
- Graphics▶
  - XPCE
  - GUI options
- Machine learning▶
  - Probabilistic Logic Programming
- External collections▶
  - Meta level tutorials
- For packagers▶
  - Linux packages
COMMUNITY
COMMERCIAL
WIKI
- Login
- View changes
- Sandbox
- Wiki help
- All tags

Documentation
- Reference manual
  - Foreign Language Interface
    - The Foreign Include File
      - Analysing Terms via the Foreign Interface
        
        Wide-character versions
        
        PL_new_atom_wchars()
        
        PL_atom_wchars()
        
        PL_get_wchars()
        
        PL_put_wchars()
        
        PL_unify_wchars()
        
        PL_unify_wchars_diff()
- Packages

Availability:C-language interface function

const pl_wchar_t* PL_atom_wchars(atom_t atom, size_t *len)

Extract characters from a wide-character atom. Succeeds on any atom marked as‘text’. If the underlying atom is a wide-character atom, the returned pointer is a pointer into the atom structure. If the atom is represented as an ISO-Latin-1 string, the returned pointer comes from Prolog's‘buffer stack’(see section 12.4.14).