SSQLS: Number of colomns in a table

[Dan Cook (dancook)]

I hope this is an "easy" question.
I would like to know if there is a way to know how many columns a table
has.  I would like to use the equal list similar to the sample code, but
the size of the vector<bool> is "hard coded" with the number of columns.
Is there a variable I can look at to get the number of columns on a
SSQLS object?

Sample Code:
   vector<bool> v(5, false);
   v[stock_weight] = true;
   v[stock_price] = true;
   query << "select * from stock where " 
         << res[0].equal_list(" and ", v);

I am looking for a variable to replace "5" in the above code.

Dan.