is_stream/1

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4.17.2 ISO Input and Output Streams

All Application Manual Name SummaryHelp

Documentation
- Reference manual
  - Built-in Predicates
    - Input and output
      - ISO Input and Output Streams
        
        open/4
        
        open/3
        
        open_null_stream/1
        
        close/1
        
        close/2
        
        stream_property/2
        
        current_stream/3
        
        is_stream/1
        
        stream_pair/3
        
        set_stream_position/2
        
        stream_position_data/3
        
        seek/4
        
        set_stream/2
        
        set_prolog_IO/3
        
        set_system_IO/3
- Packages

Availability:built-in

is_stream(+Term)

True if Term is a stream name or valid stream handle. This predicate realises a safe test for the existence of a stream alias or handle.

ClioPatria (version V3.1.1-51-ga0b30a5)