1.3.3插入迭代器 插入迭代器是一种特殊的迭代器可以在容器中插入元素,有back_inserter、front_inserter和inserter三种类型。 back_inserter示例如下: vectorivec={0,1,2,3,4,5};vectornew_vec;copy(ivec.cbegin,ivec.cend,back_inserter(new_vec)); 1.3.4流迭代器 流迭代器是一种迭代器类型,可以使用iostrea...
std::set_intersection(left.begin(), left.end(), right.begin(), right.end(), inserter(*ret_lines, ret_lines->begin())); return QueryResult(rep(), ret_lines, left.get_file()); } QueryResult OrQuery::eval(const TextQuery& text)const{ //通过Query成员lhs,rhs进行虚调用 //调用eval返...
inserter(goodValues,goodValues.end()),badValue); c.swap(goodValues); 或 for(AssocContainer<int>::iterator i = c.begin();i !=c.end();/* do nothing */){ if(badValue(*i)) c.erase(i++); else ++i; } 要在循环内部做某些(除了删除对象之外的)操作: 如果容器是一个标准序列容器,则写...
set<string>::value_typev1("aa");//v1是string类型set<string>::key_typev2("bb");//v2是string类型map<string,int>::value_type v3{"aa",12};//v3是pair<const string,int>类型map<string,int>::key_typev4("cc");//v4是string类型//只有map才有mapped_typemap<string,int>::mapped_typev5...
set_intersection(V1.begin(),V1.end(),V2.begin(),V2.end(),back_inserter(V3)); while(V3.empty()==false) { //如果是空集就退出 CIN<<fn; Read.clear(); Read.close(); Read.open(fn.c_str()); if(!Read) break; //建立空容器和V1交换以清除V1 vector<T>().swap(V1); copy(i...
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} template<class type> vector<int> set_intersection_addr(Search<type>& lhs,Search<type>& rhs) { vector<int> temp; set_intersection(lhs.addrs.begin(),lhs.addrs.end(),rhs.addrs.begin(),rhs.addrs.end(),inserter(temp,temp.begin())); return temp; } #endif...
STL中的容器有队列容器和关联容器,容器适配器(congtainer adapters:stack,queue,priority queue),位集(bit_set),串包(string_package)等等。 在本文中,我将介绍list,vector,deque等队列容器,和set和multisets,map和multimaps等关联容器,一共7种基本容器类。
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标准STL关联容器:set、multiset、map和multimap。非标准序列容器slist和rope。slist是一个单向链表,rope本质上是一“重型”string。非标准的关联容器hash_set、hase_multiset、hash_map和hash_multimap。vector<char> 作为string的替代。(见第13条)vector作为标准关联容器的替代。(见第23条)几种标准的非STL容器,包括...