SWI-Prolog -- API-function PL_clear_hash_table

Documentation
- Reference manual
  - Foreign Language Interface
    - Notes on Using Foreign Code
      - Foreign hash tables
        
        PL_new_hash_table()
        
        PL_free_hash_table()
        
        PL_lookup_hash_table()
        
        PL_add_hash_table()
        
        PL_del_hash_table()
        
        PL_clear_hash_table()
        
        PL_new_hash_table_enum()
        
        PL_free_hash_table_enum()
        
        PL_advance_hash_table_enum()
- Packages

Availability:C-language interface function

int PL_clear_hash_table(hash_table_t table)

Delete all key-value pairs from the table. Call free_symbol for each deleted pair.