On Fri, 18 Nov 2005, Akim Demaille wrote:
"Paul" == Paul Eggert <[EMAIL PROTECTED]> writes:
> "Joel E. Denny" <[EMAIL PROTECTED]> writes:
>> However, I just noticed the current YYUSE definition doesn't allow the
>> argument to be a struct instance. Paul, Akim, is this intentional?
> Yes and no. If we could easily implement it with struct instances we
> would. But so far we haven't needed it, and doing it would be a pain.
I've needed it in C++, so there it uses the traditional cast to void.
Because of the new b4_parse_param_use, I'm now finding that some of my
existing bison specs need it for C or I get a compile error. Below is a
test case demonstrating the problem. What was wrong with the cast to void?
Joel
%{
#include <stdio.h>
struct ParseParam { int i; };
static void yyerror (struct ParseParam, char const *);
static int yylex (void);
%}
%parse-param { struct ParseParam parse_param }
%%
start: ;
%%
static void
yyerror (struct ParseParam parse_param, char const *msg)
{
fprintf (stderr, "%s\n", msg);
}
static int
yylex (void)
{
return 0;
}
int
main (void)
{
struct ParseParam parse_param;
return yyparse (parse_param);
}
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