-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Might I interest you in some Prana? http://github.com/brycelelbach/prana http://thread.gmane.org/gmane.comp.parsers.spirit.general/20853 Not done yet, but it should be in a usable state soon. On Thu, 21 Oct 2010 10:39:50 +0200 dariomt@gmail.com wrote:

Hi all,

I need a tree-like structure like the following

boost::variant< int, std::vector<tree>, std::map<std::string, tree> > tree;

So, my tree can have an int, or a list of trees, or a map of trees.

Of course this is not possible, and I've been trying to use boost::recursive_wrapper. I have looked at the example in the documentation, but and I'm not able to achieve what I want. My feeling is that I'm missing an extra 'node' level somewhere, but since all the types I'm using are typedefs, I cannot forward delcare it to break the cyclic reference...

I would appreciate help with this. Thanks in advance.

- -- Bryce Lelbach aka wash http://groups.google.com/group/ariel_devel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkzAE5cACgkQO/fqqIuE2t6/2ACgk1Aw/TnQjWcIgolfRDVZ1KXQ 5kYAoOrsWDAtRt99gihClUgz9T/A31hm =99z5 -----END PGP SIGNATURE-----