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            The template create_generator
            is a type used as an customization point. It is invoked by the Karma
            create_generator API function
            in order to create a custom mapping of the given data type to a generator
            expression. This generator expression will be returned from create_generator whenever the
            given data type is encountered.
          
// forwards to <boost/spirit/home/karma/auto.hpp> #include <boost/spirit/include/karma_auto.hpp>
Also, see Include Structure.
| Name | 
|---|
| 
                       | 
template <typename T, typename Enable> struct create_generator { typedef <unspecified> type; static type const& call(); };
| Parameter | Description | Default | 
|---|---|---|
| 
                       | 
                      The type,  | none | 
| 
                       | 
                      Helper template parameter usable to selectively enable or disable
                      certain specializations of  | 
                       | 
Notation
TAn arbitrary type.
| Expression | Semantics | 
|---|---|
| 
                       | 
                      Defines the type of the generator expression returned from
                       | 
| 
                       | 
                      Returns a generator expression (usually this is a proto::expression)
                      to be used as the default generator for the given type,  | 
Spirit predefines specializations of this customization point for several types. All predefined mappings are listed here: Additional Attribute Requirements for Generators.
| ![[Note]](../../../../images/note.png) | Note | 
|---|---|
| 
              It is possible to overload the predefined mappings for the listed types
              by providing your own specialization of the  | 
            The customization point create_generator
            needs to be implemented for a specific type whenever this type should
            be usable with the API function create_generator (which includes
            using the karma::auto_ generator and the special API
            functions based on the automatic creation of the matching generator type).
          
            For an example of how to use the customization point create_generator
            please see here: Example
            for Using the karma::auto_ Generator.