Hi,
I'm using Bison 2.0 with Flex 2.5.27 in MinGW in Windows. I've had two
weird problems, and I'm not sure if it's Bison's fault or something
wrong with my configuration:
- in the generated c file, just after the part where it says
"initialize stack pointers", there is a line that says "yyvsp[0] =
yylval;". this kills my program as yylval is not initialized yet. I
threw in an %initial-action that sets yylval to 0 for now to
workaround this.
- I have stuff at the top of my grammar like so:
%{
#define YYSTYPE double
...
%}
%defines
yet this is never copied into the generated header file. instead I get this:
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
typedef int YYSTYPE;
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
I've looked through the archives and can't find any responses about
these questions. Thanks for your help.
- Chris
