multi_index_container是c++ boost库中的一个多索引的容器。因工作中用到了，特来测试试用。
1 #include "stdafx.h" 2 #include "test.h" 3 4 #include <string> 5 #include <iostream> 6 #include <boost/multi_index_container.hpp> 7 #include <boost/multi_index/member.hpp> 8 #include <boost/multi_index/ordered_index.hpp> 9 10 using namespace std; 11 using namespace boost; 12 using namespace boost::multi_index; 13 14 struct Book{ 15 int id; 16 int date; 17 string name; 18 string author; 19 20 Book(int id_, 21 int date_, 22 string name_, 23 string author_) 24 { 25 id = id_; 26 date = date_; 27 name = name_; 28 author = author_; 29 } 30 }; 31 32 typedef multi_index_container< 33 Book, 34 indexed_by< 35 ordered_unique<member<Book, int, &Book::id> >, 36 ordered_non_unique<member<Book, int, &Book::date> >, 37 ordered_non_unique<member<Book, string, &Book::name> >, 38 ordered_non_unique<member<Book, string, &Book::author> > 39 > >BookContainer; 40 41 typedef BookContainer::nth_index<0>::type Id_Index; 42 typedef BookContainer::nth_index<1>::type Date_Index; 43 typedef BookContainer::nth_index<2>::type Name_Index; 44 typedef BookContainer::nth_index<3>::type Author_Index; 45 46 int _tmain(int argc, _TCHAR* argv[]) 47 { 48 BookContainer con; 49 con.insert(Book(0, 2011, "math book", "jim")); 50 con.insert(Book(2, 2008, "chinese book", "jam")); 51 con.insert(Book(1, 2005, "english book", "roland")); 52 con.insert(Book(3, 2010, "music book", "rose")); 53 54 Id_Index& id_idx = con.get<0>(); 55 for (auto iter = id_idx.begin(); iter != id_idx.end(); iter++) 56 { 57 cout << iter->id << " " 58 << iter->date << " " 59 << iter->name << " " 60 << iter->author << endl; 61 } 62 63 cout << endl; 64 65 Date_Index& date_idx = con.get<1>(); 66 for (auto iter = date_idx.begin(); iter != date_idx.end(); iter++) 67 { 68 cout << iter->id << " " 69 << iter->date << " " 70 << iter->name << " " 71 << iter->author << endl; 72 } 73 74 cout << endl; 75 76 Name_Index& name_idx = con.get<2>(); 77 for (auto iter = name_idx.begin(); iter != name_idx.end(); iter++) 78 { 79 cout << iter->id << " " 80 << iter->date << " " 81 << iter->name << " " 82 << iter->author << endl; 83 } 84 85 cout << endl; 86 87 Author_Index& author_idx = con.get<3>(); 88 for (auto iter = author_idx.begin(); iter != author_idx.end(); iter++) 89 { 90 cout << iter->id << " " 91 << iter->date << " " 92 << iter->name << " " 93 << iter->author << endl; 94 } 95 96 getchar(); 97 return 0; 98 }
输出：
可以看到以int型为索引的，输出是按照从小到大来排序的。以string为索引的，是按照字母顺序来输出的。