Hi Joaquín M López Muñoz, thank you for your quick answer! I appreciate that multi_index_container exist and I can use it. In my opinion this library is very useful and facilitate many programs.
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;
OK, fine.
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;;
OK, too.
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;
!! Here I'm missing somethig... Isn't version D exactly the same as version B, which does work?
Exact this I wanted to point out. Version D differs from version B in removing two lines 31, 32 only (i.e. the name index). Version C is nearly the same, too. Nevertheless there is a difference when compiling. best regards Volker Vieth