On Sun, 9 Nov 2008, Nelson Ferreira wrote: > but I still am confused then about what this actually does: > > #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED > > # define yystype YYSTYPE /* obsolescent; will be withdrawn */ > # define YYSTYPE_IS_DECLARED 1 > #endif
I can't think of any reason why it's needed in this case (that is, <...> is seen but there's no %union). I'll leave it up to other developers to decide whether it can be removed for Bison 2.5. Thanks for the report. > I mean, is this not misleading other code that interfaces with yours? > After all you are stating with #define YYSTYPE_IS_DECLARED 1 that YYSTYPE is > available > when you cannot actually say that. YYSTYPE_IS_DECLARED is not documented anywhere and is thus for Bison's internal use. Users should not depend on it, so I don't think this issue needs to be addressed in Bison 2.4.1. _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
