// std_tr1__unordered_map__unordered_map_bucket_count.cpp // compile with: /EHsc #include <unordered_map> #include <iostream> typedef std::unordered_map<char, int> Mymap; int main() { Mymap c1; c1.insert(Mymap::value_type('a', 1)); c1.insert(Mymap::value_type('b', 2))...
= mymap.end(); ++it )cout<<" "<< it->first <<":"<< it->second;cout<<endl;/***bucket操作***/unsignedn = mymap.bucket_count();cout<<"mymap has "<< n <<" buckets.\n";for(unsignedi=0; i<n; ++i) {cout<<"bucket #"<< i <<...
// unordered_map::bucket_count #include <iostream> #include <string> #include <unordered_map> using namespace std; int main () { unordered_map<string,string> mymap = { {"house","maison"}, {"apple","pomme"}, {"tree","arbre"}, {"book","livre"}, {"door","porte"}, {"grape...
unordered_map::bucket_count() ->返回桶的数量。 unordered_map::bucket_size() ->返回具体桶中的元素个数。 unordered_map::equal(k) -> 返回与k值匹配的key,返回值的first为指向本身桶,second为指向下一个桶。而桶类型本身的也有first和second,分别代表key和value。 unordered_map::erase(const_iterator po...
size_typebucket_count() const; The member function returns the current number of buckets.
#include <unordered_map> usingnamespacestd; //取得键和值: unordered_map<Key,T>::iteratorit; it->first;// same as (*it).first (the key value) it->second;// same as (*it).second (the mapped value) 1. 2. 3. 4. 5.
unordered_map( const unordered_map& Right ); explicit unordered_map( size_type Bucket_count = N0, const Hash& Hash = Hash(), const Comp& Comp = Comp(), const Allocator& Al = Allocator() ); unordered_map( unordered_map&& Right ); unordered_map( initializer_list<Type> IList ); unorde...
// std_tr1__unordered_map__unordered_map_max_bucket_count.cpp // compile with: /EHsc #include <unordered_map> #include <iostream> typedef std::tr1::unordered_map<char, int> Mymap; int main() { Mymap c1; c1.insert(Mymap::value_type('a', 1)); c1.insert(Mymap::value_type('...
swap():交换 2 个 unordered_map 容器存储的键值对,前提是必须保证这 2 个容器的类型完全相等。 reserve():将存储桶的数量(也就是 bucket_count() 方法的返回值)设置为至少容纳count个元(不超过最大负载因子)所需的数量,并重新整理容器。 0x4 Example ...
private:__bucket_type*_M_buckets=&_M_single_bucket;size_type_M_bucket_count=1;__node_base_M...