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

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   Message 1,008 of 2,753   
   Steve Horne to drewpvo...@gmail.com   
   Re: Help with bison   
   27 Jul 07 02:13:11   
   
   From: stephenhorne100@aol.com   
      
   drewpvo...@gmail.com wrote:   
      
   > The pertinent portion of Simple.y is:   
   > %union semrec                 /* The Semantic   
      
   I think that's your problem. You are only supposed to have one %union,   
   and Bison gives that the name YYSTYPE automatically. You have tried to   
   give it a name yourself, and so it ends up with two names.   
      
   A typical %union declaration might look like...   
      
   %union {   
   int  m_Int_Result;   
   float  m_Float_Result;   
   }   
      
   If you want to define other unions, just use the normal C syntax in   
   the %{ ... %} section.   
      
   For more complex parsers, it is more normal to define YYSTYPE as   
   either a base-class pointer or a simple integer (a key to access some   
   external data structure).   
      
   I don't think there's any way to give YYSTYPE another name. Section   
   3.8 of the manual (version 2.3) claims there's never any need.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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