1//所在头文件:<map>, std::map 类模板, std::map 通常由二叉搜索树实现。2template <classKey,//map::key_type3classT,//map::mapped_type4classCompare = less<Key>,//map::key_compare5classAlloc = allocator<pair<constKey,T> >//map::allocator_type6>classmap; std::unorder_map的定义如下:...
1 #include<iostream> 2 #include<map> 3 using namespace std; 4 typedef struct tagIntPlus 5 { 6 int num,i; 7 }IntPlus; 8 //自定义比较规则 9 //注意operator是(),不是< 10 struct Cmp 11 { 12 bool operator () (IntPlus const &a,IntPlus const &b)const 13 { 14 if(a.num!=b.n...
(std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = Node; _Tp = int; _Compare = std::less<Node>; _Alloc = std::allocator<std::pair<const Node, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _...
map(InputIt first, InputIt last, constAllocator&alloc); (C++14 起) map(constmap&other); map(constmap&other,constAllocator&alloc); (C++11 起) map(map&&other); (C++11 起) map(map&&other,constAllocator&alloc); (C++11 起) map(std::initializer_list<value_type>init, ...
class map \{ public: typedef std::pair\<const Key, T> value\_type; private: typedef rb\_tree\<Key, value\_type> rep\_type; rep\_type tree\_; \}; 见下图。这是一颗空树,其中阴影部分是 padding bytes,因为 key_compare 通常是 empty class。(allocator 在哪里?) ...
std::map<Key,T,Compare,Allocator>::try_emplace std::map<Key,T,Compare,Allocator>::insert_or_assign std::map<Key,T,Compare,Allocator>::clear std::map<Key,T,Compare,Allocator>::map std::map<Key,T,Compare,Allocator>::~map std::map<Key,T,Compare,Allocator>::operator= std::map<Key,...
std::map<Key,T,Compare,Allocator>::insert_or_assign template<classM> std::pair<iterator,bool>insert_or_assign(constKey&k, M&&obj); (1)(since C++17) template<classM> std::pair<iterator,bool>insert_or_assign(Key&&k, M&&obj);
std::map<Key,T,Compare,Allocator>::extract C++ 容器库 std::map node_type extract(const_iterator position); (1)(C++17 起) node_type extract(constKey&k); (2)(C++17 起) template<classK> node_type extract(K&&x); (3)(C++23 起) ...
std::map<Key,T,Compare,Allocator>:: C++ 容器库 std::map std::pair<iterator,bool>insert(constvalue_type&value); (1) template<classP> std::pair<iterator,bool>insert(P&&value); (2)(C++11 起) std::pair<iterator,bool>insert(value_type&&value);...
map(InputIt first, InputIt last, constCompare&comp=Compare(), constAllocator&alloc=Allocator()); (4) template<classInputIt> map(InputIt first, InputIt last, constAllocator&alloc) :map(first, last, Compare(), alloc){} (5)(since C++14) ...