boost::assign(标准容器填充库)

int main(){
    using namespace boost::assign;
    //对std::vector
    std::vector<int> v;
    v+=1,3,6,7,9,5,8,9,1,63;
    //对std::set
    std::set<std::string> s;
    s+="test","for","boost::assign";
    //对std::map
    std::map<int,std::string> mp;
    mp+=std::make_pair(0,"test"),std::make_pair(1,"boost::assign");
    
    BOOST_ASSERT(v.size()==10);
    BOOST_ASSERT(l.size()==6);
    BOOST_ASSERT(s.size()==6);
}

    std::list<int> l=list_of(5)(9)(3)(7)(9649);
    std::vector<int> v=ref_list_of(6)(7)(416);//ref_list_of参数可以传入引用
    std::map<int,std::string> mp=map_list_of(1,"first")(2,"second");
    // 二维数组
    std::vector<std::vector<int>> vp = list_of(list_of(1)(2)) (list_of(3)(4));
    vp += list_of(5)(6), list_of(7)(8);

/ 减少重复输入:  
// assign库提供repeat(),repeat_fun()和range()三个函数来减少重复的输入  
  
void test_assign_repeat()  
{  
    using namespace boost::assign;  
  
    std::vector<int> v = list_of(1).repeat(3, 2)(3)(4)(5);  
    // 1, 2, 2, 2, 3, 4, 5  
    std::copy(v.cbegin(), v.cend(), std::ostream_iterator<int>(std::cout, " "));  
    std::cout << std::endl;     
  
    std::deque<int> d;  
    push_front(d).range(v.begin(), v.begin() + 5);  
    // 3, 2, 2, 2, 1  
    std::copy(d.cbegin(), d.cend(), std::ostream_iterator<int>(std::cout, " "));  
    std::cout << std::endl;  
}  

#include <boost/assign/list_inserter.hpp> // for 'insert()'  
#include <boost/assert.hpp>   
#include <string>  
using namespace std;  
using namespace boost::assign; // bring 'insert()' into scope  
   
{  
    map<string,int> months;    
    insert( months )  
        ( "january",   31 )( "february", 28 )  
        ( "march",     31 )( "april",    30 )  
        ( "may",       31 )( "june",     30 )  
        ( "july",      31 )( "august",   31 )  
        ( "september", 30 )( "october",  31 )  
        ( "november",  30 )( "december", 31 );  
    BOOST_ASSERT( months.size() == 12 );  
    BOOST_ASSERT( months["january"] == 31 );  
}