if (false) goto yyerrorlab; triggers a warning

[Alexey Feldgendler]

Some compilers (MS VisualStudio at least) throw a warning "unreachable  
code" on this part of the parser:

  yyerrorlab:

    /* Pacify compilers like GCC when the user code never invokes
       YYERROR and the label yyerrorlab therefore never appears in user
       code.  */
    if (false)
      goto yyerrorlab;

That's correct, the code is unreachable, so we have one warning replaced  
with another. I'm afraid that inclusion of this code has to be made  
conditional depending on whether YYERROR is acutally used anywhere.


--
Alexey Feldgendler <address@hidden>
[ICQ: 115226275] http://feldgendler.livejournal.com