I forgot to say it, multiindex.zip is in the Files section. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo
Joaquín Mª López Muñoz ha escrito: > Hi all, > > I'm (slowly) working on multiindex_set, an std::set-like container > supporting multiple indices, much in the spirit of a relational table. > On instantiation time, a tuple of comparison predicates is provided > as well as information on which of them are to be treated as unique > (no duplicates). The container provides "views" on each index that > behave > (to the maximum extent possible) as regular sets sorted by the > corresponding comparison predicate. A small utility is provided, named > less_by, for the (supposedly) usual case in which a comparison predicate > > depends on only one of the fields of the value, which allows for > emulation > of map-like containers. Different instantiantion parameters yield > containers > behaving like all the STL associative containers (though the power of > the > library does not lie in this, of course). > If the compiler supports partial specialization, the suite of lookup > methods > is duplicated to allow for "compatible" comparisons: for instance, one > can > find an element giving only the field on which the comparison depends, > or, if some comparison depends on say names then a compatible predicate > can be feed that looks for initials (an example of this is provided). > > So far, the library is say 75% complete, at least from my initial > specification, > so I thinked it could be of interest to Boosters in its actual form. > Please > look for multiindex.zip for the library and a rather extensive example > of > use. It compiles and works in MSVC 6.0sp5 and g++ 3.2 under Cygwin. > No docs yet, sorry. > > Comments on the library are most welcome. Best regards, > > Joaquín M López Muñoz > Telefónica, Investigación y Desarrollo > > _______________________________________________ > Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
