Possible bison enhancement or bug?

[Arturo Josè Montes Sinning]

Dears bison mantainers

Working with bison to generate C++ parser, I define the following base 
class:

class BisonParser
{
public:
   virtual int parse() = 0;
};


My derived parser:

class MyParser : public BisonParser
{
public:
   virtual int parse();
};

MyParser.h

#define yyparse MyParser::parse
More definitions follow

When I compile it with GNU GCC, get the next error:

int MyParser::parse();

definition outside of class not allowed.

This due to bison.simple prototype definition yyparse. In the attached 
file, I am sending patch to fix this.

A last comment: Should I put a test more, for example if __cplusplus 
compiling?

Arturo

362a363
> # ifndef yyparse
367a369
> #endif /* yyparse */