SWI-Prolog -- Identifying blobs by atoms

Documentation
- Reference manual
- Packages
  - A C++ interface to SWI-Prolog
    - A C++ interface to SWI-Prolog (Version 2)
      - Overview (version 2)
        
        Blobs
        
        A review of C++ features used by the API
        
        How to define a blob using C++
        
        The life of a PlBlob
        
        C++ exceptions and blobs
        
        Sample PlBlob code (connection to database)
        
        Discussion of the sample PlBlob code
        
        Sample PlBlob code (wrapping a pointer)
        
        Discussion of the sample PlBlob code (wrapping a pointer)
        
        Identifying blobs by atoms

2.6.8.9 Identifying blobs by atoms

Passing a Prolog blob around can be inconvenient; it is easier if a blob can be identified an atom. An example of this is with streams, which are identified by atoms such as user_input.

A utility class AtomMap is provided for this situation. See section 2.17.4.