(1)back_inserter,创建一个使用push_back 实现插入的迭代器。 (2)front_inserter,创建一个使用push_front实现的插入迭代器。 (3)inserter,使用insert实现的插入,此外还带有第二个实参:指向插入起始位置的迭代器。 back_inserter是一种迭代器适配器,它与容器适配器一样,是以一个容器对象作为实参,生成一个适应期实...
template <class_Container>inlineback_insert_iterator<_Container>back_inserter(_Container& __x){returnback_insert_iterator<_Container>(__x); } 当用户调用back_inserter函数时,函数实际返回后向插入迭代器类(back_insert_iterator)对象,并将容器参数传递给后向插入迭代器类的构造函数。 后向插入迭代器类代码(...
print("v2: ", v2);// OK: back_insert_iterator is marked as checked in debug mode// (i.e. an overrun is impossible)vector<int> v3; transform(v.begin(), v.end(), back_inserter(v3), [](intn) {returnn *3; }); print("v3: ", v3);// OK: array::iterator is checked in d...
push_back(i); } set<int> s; s.insert(v.begin(), v.end()); set<int>::iterator it; for (it = s.begin(); it != s.end(); it++){ printf("%d\t", *it); } printf("\n"); printf("%d\n", s.count(9)); printf("%d\n", *(s.find(9))); return 0; } 4、从set...
Changing the static text control background color? Check for installed version of Microsoft Visual C++ 2013 Redistributable (x86) Check if a float is valid? check if directory exists Check if Iterator is valid Check if the value exist in the Registry. child process limits in service context and...
ArrayList 的 append/insert 函数 ArrayList 的 get/set 函数 ArrayList 的 remove/clear/slice 函数 HashMap 的 get/put/contains 函数 HashMap 的 putAll/remove/clear 函数 HashSet 的 put/iterator/remove 函数 迭代器操作函数 std.collection.concurrent 包 接口 类 示例教程 ConcurrentHashMap 使...
(map<char*,int>::iterator it=mp.begin();it!=mp.end();it++) cout<<it->first<<endl; /* map / unordered_map 不要轻易使用 size() 函数 */ // 如果中途在比较的时候,有些新的ump[i]原本没有存储的会被创建,导致size会扩增 if(ump[i]!=1) {...} printf("%d",ump.size()); /* ...
v.push_back(i); } set<int> s; s.insert(v.begin(), v.end()); set<int>::iterator it; for (it = s.begin(); it != s.end(); it++){ printf("%d\t", *it); } printf("\n"); s.insert(10); for (it = s.begin(); it != s.end(); it++){ ...
(for example, by using static_cast<my_type> to convert from the integer value) and update the definition of new and delete to cast back to ...In addition to detecting _ITERATOR_DEBUG_LEVEL mismatches, which was implemented in Visual Studio 2010, The C++ compiler in Visual Studio 2012 detect...