How to find shift/reduce conflict in this yacc file?

Question

When I try to use yacc on the following file I get the error conflicts: 1 shift/reduce How can I find and fix the conflict?

/* C-Minus BNF Grammar */

%token         


        

Answer 1

maybe you should try a yacc -v , it generates an output of the details.

I tested here, and your grammar description fails in the classic "dangling else" problem.

Take a look at this Wikipedia article.