Hi, using multi_index_container I've got strange errors. Simple source code leaned on official examples doesn't compile. Hardly modified code that seems to be equivalent does compile however. I've reduced it to two examples. I'm using Visual C++ .NET 7.09466 (i.e. cl.exe 13.00.9466) with boost 1.32.0 under Win XP. This first example is a shortened version of boost_1_32_0\libs\multi_index\example\basic.cpp. It reveals 4 subversions, but 2 of them only compile without erros. Why the other don't? 01 #include <boost/multi_index_container.hpp> 02 #include <boost/multi_index/member.hpp> 03 #include <boost/multi_index/ordered_index.hpp> 04 #include <string> 05 06 using boost::multi_index_container; 07 using namespace ::boost; 08 using namespace boost::multi_index; 09 10 11 struct employee 12 { 13 int id; 14 std::string name; 15 int age; 16 17 employee(int id_,std::string name_,int age_):id(id_),name(name_),age(age_){} 18 }; 19 20 21 struct id{}; 22 struct name{}; 23 struct age{}; 24 25 26 typedef multi_index_container< 27 employee, 28 indexed_by< 29 ordered_unique< 30 tag<id>, BOOST_MULTI_INDEX_MEMBER(employee,int,id)>, 31 ordered_non_unique< //remove for versions C, D 32 tag<name>,BOOST_MULTI_INDEX_MEMBER(employee,std::string,name)>, 33 ordered_non_unique< 34 tag<age>, BOOST_MULTI_INDEX_MEMBER(employee,int,age)> > 35 > employee_set; 36 37 38 //use exact one of following versions, remove the other lines 39 40 //version A: does NOT compile 41 //causes basic.cpp(42) : error C2976: 'boost::multi_index::index' : too few template arguments 42 typedef employee_set::index<id>::type employee_set_by_id; 43 44 //version B: DOES compile 45 typedef index<employee_set,id >::type employee_set_by_id; 46 typedef index<employee_set,age>::type employee_set_by_age; 47 48 //remove the name index (lines 31, 32) for following versions 49 50 //version C: DOES compile 51 typedef index<employee_set,id >::type employee_set_by_id;; 52 53 //version D: does NOT compile 54 //causes ...\include\boost-1_32\boost\mpl\vector\aux_\preprocessed\no_ctps\vector10.hpp(398) : 55 // error C2039: 'item3' : is not a member of 'boost::mpl::vector2<T0,T1>' 56 typedef index<employee_set,age>::type employee_set_by_age; My second example consists of 2 tiny programs. The former compile fine. Using the qualified name should do the same, but outputs ...\include\boost-1_32\boost\multi_index_container.hpp(60) : error C2039: 'multi_index_node_type' : is not a member of 'boost::detail' Where's the difference? 60 #include <boost/multi_index_container.hpp> 61 #include <boost/multi_index/ordered_index.hpp> 62 63 using boost::multi_index_container; 64 65 int main( int argc, char* argv[] ) 66 { 67 multi_index_container< int > mic; 68 return 0; 69 } 70 #include <boost/multi_index_container.hpp> 71 #include <boost/multi_index/ordered_index.hpp> 72 73 int main( int argc, char* argv[] ) 74 { 75 boost::multi_index_container< int > mic; 76 return 0; 77 } -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl