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   comp.compilers      Compiler construction, theory, etc. (Mod      2,753 messages   

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   Message 1,958 of 2,753   
   Hans Aberg to JohnSmith   
   Re: shift/reduce problem   
   03 Dec 10 00:44:57   
   
   From: haberg-news@telia.com   
      
   On 2010/12/02 21:29, JohnSmith wrote:   
   > I'm using bison and flex. Bison reports shift/reduce conflict:   
   > probably because cannot decide on "," when "input" coming (is this an   
   > error or should reduce).  How to resolve this problem? Probably I have   
   > to use %left, %right, %prec but I dont know how.   
      
   Use the flags   
      bison --verbose --report=all   
   to get the .output file. Look for the state, and in it, the conflicting   
   rules, and in those, the two tokens immediately before and after the   
   parsing position ".". The token precedences %left, ..., set preferences   
   between those pairs.   
      
      Hans   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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