struct phonebook_entry { std::string family_name; std::string given_name; std::string phone_number; phonebook_entry( std::string family_name, std::string given_name, std::string phone_number): family_name(family_name),given_name(given_name),phone_number(phone_number) {} }; // define a multi_index_container with a composite key on // (family_name,given_name) typedef multi_index_container< phonebook_entry, indexed_by< //non-unique as some subscribers might have more than one number ordered_non_unique< composite_key< phonebook_entry, member<phonebook_entry,std::string,&phonebook_entry::family_name>, member<phonebook_entry,std::string,&phonebook_entry::given_name> > >, ordered_unique< // unique as numbers belong to only one subscriber member<phonebook_entry,std::string,&phonebook_entry::phone_number> > > > phonebook;
member<phonebook_entry,std::string,&phonebook_entry::family_name>, member<phonebook_entry,std::string,&phonebook_entry::given_name>should be auto-generated by reading a composite key from a file.
[hidden email]
On 02/04/2014 03:36 PM, syvyi wrote:Sounds like you might be interested in MultiIndex's composite key feature:
> Hello,
>
> there's a structure
> struct person
> {
> std::string name;
> std::string surname;
> int birth_year;
> std::string craft;
> };
>
> How to create such a multiindex container that dumping could performed using
> an index as name, surname and year triple alltogether?
http://www.boost.org/doc/libs/1_55_0/libs/multi_index/doc/tutorial/key_extraction.html#composite_keys
Jason
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