Re: no operator << taking semantic_type* in ostream library

[Akim Demaille]

Le 29 juil. 08 à 17:49, Gaag, M van der - SPLXM a écrit :

> Hello GNU/Bison team,

Hi,

> Compiling the xxx-parser.tab.cc under Unbreakable Linux (basically
> RedHat with GCC 4.1.1) gives me the error operator<< not found in the
> ostream library on statement debug_stream() << ( * yyvaluep ) as it  
> has
> no operator << on semantic_type*. This statement is executed when it
> encounters an expression.

This means probably means that you have used %printer for
some type foo as follows:

        %printer { debug_stream() << $$ } <foo>;

but you did not include the file that defines this operator.
Something like

        %code {
        # include "foo.hh"
        }

> Does eliminating this statement harm the parser in any way or just the
> debugging output?

Only debugging output.

> As this is generated code, is it possible to fix it?

Do you have a %printer?