Re: [Boost-users] [variant] declaring recursive variants

16 Nov 2011


      AMDG

On 11/15/2011 06:10 PM, Jerry Jeremiah wrote:
...
Actually, I don't want a recursive variant in the normal recursive_wrapper 
sense.  What I want is this:
typedef std::list<a> alist;
typedef std::list<b> blist;
typedef boost::variant<std::string
                      ,long double
                      ,alist::iterator
                      ,blist::iterator
                      ,config::iterator
                      > var;
typedef std::vector<var> value;
typedef std::map<std::string,value> message;
typedef std::map<std::string,message> config;
But of course I can't do that because I have no idea how to forward declare 
config.  I suspect that there is no way to do this, but I am not in the same 
league as everybody else when it comes to this stuff.
Any suggestions?
Wrap it in a struct and forward declare
the struct.

In Christ,
Steven Watanabe