Akim Demaille <[EMAIL PROTECTED]> writes:
> I don't recall the exact details, but yes, at that time there was a
> difference. It might well be that there was no typedef, but just a
> #define, I don't remember.
That reminds me of another Posix incompatibility that I'd like to fix.
Posix says that a grammar can use <tag> without %union, and then it's
the user's responsibility to define the type YYSTYPE. Hence the
following grammar conforms to Posix:
%{
void yyerror (char const *);
int yylex (void);
typedef union { char const *val; } YYSTYPE;
%}
%type <val> program
%token <val> '+'
%%
program: '+';
but Bison incorrectly generates a C file that doesn't compile, because
it redeclares YYSTYPE. I have prepared most of a patch to fix this,
but I'll have to redo it now that the scanner has changed.
