Markus Werle ha escrito:
Hi!
Even for the more correct typedef I get lost:
typedef bm::multi_index_container <data_t, bm::indexed_by <bm::sequenced<>, bm::ordered_unique <bm::const_mem_fun<data_t, std::string const &, &data_t::get<0> > > > > storage_t;
this fails due to probably disallowed standard conversions (or a cobfused gcc-4.0.3): Cleaned up error message:
[...] Hello Markus, This particular problem of using tuple fields as key extractors is discussed at the following thread: http://lists.boost.org/boost-users/2005/12/16087.php Please take a look at it and come back if anything's not clear: summing it up, what you get will work when Boost 1.34 comes out or if using a CVS snapshot, except that you have to write data_t::inherited when declaring the extractor's base class: bm::const_mem_fun< data_t::inherited, std::string const &, &data_t::get<0>
And the other solution is to write a user-defined extractor as explained in the aforementioned thread. HTH, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo