When the directive
%locations is used, the C++ parser supports
location tracking, see Tracking Locations.
By default, two auxiliary classes define a
position, a single point
in a file, and a
location, a range composed of a pair of
positions (possibly spanning several files). But if the
api.location.type is defined, then these
classes will not be generated, and the user defined type will be used.
In this section
uint is an abbreviation for
unsigned int: in
genuine code only the latter is used.