c('SwriteBOM')

Documentation
- Reference manual
  - Foreign Language Interface
    - Foreign access to Prolog IO streams
      - Foreign stream encoding
        
        Ssetenc()
        
        ScheckBOM()
        
        SwriteBOM()
        
        Scanrepresent()
- Packages

Availability:C-language interface function

int SwriteBOM(IOSTREAM *s)

This function writes a Byte Order Mark (BOM) to s and should be called immediately after opening a stream for writing. If the encoding is one of ENC_UTF8, ENC_UNICODE_BE or ENC_UNICODE_LE it writes the code point \ufeff (a zero-width white space) to the stream in the current encoding and sets the SIO_BOM flag on the stream.