Le 19 juin 2012 à 11:30, Timothy Madden a écrit :
> Hello
>
> I would like to use std::string as the only semantic value type in my C++
> parser.
>
> Is there a way to do that without redefining YYSTYPE (which the C++ interface
> says it should not be used) ?
It seems to work though.
$ cat foo.y
%language "C++"
%defines
%code top
{
#include <string>
}
%{
#define YYSTYPE std::string
int yylex(YYSTYPE*) { return 0; }
%};
%%
exp: { $$ = "Hello, world!"; std::cerr << $$ << std::endl; }
;
%%
void
yy::parser::error(const location&, const std::string&)
{}
int
main ()
{
yy::parser p;
return p.parse();
}
$ /opt/local/bin/bison foo.y && g++-mp-4.7 -Wall foo.tab.cc -o foo
$ ./foo
Hello, world!
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