Re: [Boost-users] [boost-users] How to put together a tuple type?

16 Aug 2006

      Joel de Guzman wrote:
...
Christian Henning wrote:
...
That's work in my sample code. Thanks.
But what happens if the S structs are more heterogenious? Like:
struct s3
{
  static const int num_values = 4;
int i;
  float j;
  int k;
  double l;
};
I'm sure there is some mpl magic possible.
Fusion! :-)
mpl::vector_c<4> consts;
     fusion::vector vars;
     fusion::joint_view s3(consts, vars);
Oops, that should be

      typedef mpl::vector_c consts_type;
      typedef fusion::vector vars_type;

      vars_type vars;
      fusion::joint_view s3(consts_type(), vars);

Anyway, I'm sure you got the point. With our 's3' above, we can,
for exemple, write (using boost::lambda):

     fusion::for_each(s3, cout << _1 << endl);

to print all the items.

I'll be putting Fusion in the Boost CVS soon. Try it! :)

Regards,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net