Re: Any Method of reading the token values off the stack

[Tim Zimmerlin]

Hans,

I looked at the bison generated parser. I believe that:

yystacksize is the number of stack elements in each of the yyss, yyvs, 
and yyls arrays.

the yyss, yyvs, and yyls stacks are synchronized with the same offset 
from the head of the array.

yyvs[0] is never used or initialized but yyss[0] is used.

int size = yyvsp - yyvs[1] + 1;  // count of stack members with yyvs[0] 
unused


Is this correct? What is yyls? How can I determine the data type of 
each yyvs[i] when a union is used?

Your previous suggestion was very helpful.

Thanks,
Tim