SWI-Prolog -- current_input/1

Documentation
- Reference manual
  - Built-in Predicates
    - Input and output
      - Switching between Edinburgh and ISO I/O
        
        set_input/1
        
        set_output/1
        
        current_input/1
        
        current_output/1
- Packages

Availability:built-in

[ISO]current_input(-Stream)

Get the current input stream. Useful for getting access to the status predicates associated with streams.