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10.1.2 C++ Bison Interface

The C++ deterministic parser is selected using the skeleton directive, ‘%skeleton ""’. See Bison Declaration Summary.

When run, bison will create several entities in the ‘yy’ namespace. Use the ‘%define api.namespace’ directive to change the namespace name, see %define Summary. The various classes are generated in the following files:


(Assuming the extension of the grammar file was ‘.yy’.) The declaration of the C++ parser class and auxiliary types. By default, this file is not generated (see Bison Declaration Summary).

The implementation of the C++ parser class. The basename and extension of these two files (file.hh and follow the same rules as with regular C parsers (see Invoking Bison).


Generated when both %header and %locations are enabled, this file contains the definition of the classes position and location, used for location tracking. It is not generated if ‘%define api.location.file none’ is specified, or if user defined locations are used. See C++ Location Values.


Useless legacy files. To get rid of then, use ‘%require "3.2"’ or newer.

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