unordered_set::swap(right).ExampleC++ Kopija #include <unordered_set> #include <iostream> typedef std::unordered_set<char> Myset; int main() { Myset c1; c1.insert('a'); c1.insert('b'); c1.insert('c'); // displa
unordered_set::swap(right). Example C++ Copy #include <unordered_set> #include <iostream> typedef std::unordered_set<char> Myset; int main() { Myset c1; c1.insert('a'); c1.insert('b'); c1.insert('c'); // display contents " [c] [b] [a]" for (Myset::const_iterator ...
在C++中,`unordered_set`是一种哈希表实现的关联容器,用于存储唯一的元素。在声明`unordered_set`时,可以自定义哈希函数和相等性比较函数。 首先,需要包含`unorder...
unordered_set bucket_count() function in C++ STL unordered_set::bucket_count()方法是 C++ STL 中的内置函数,它返回 unordered_set 容器中存在的桶的总数。 bucket是 unordered_set 内部哈希表中的一个槽,用于存储元素。 注意:unordered_set中的bucket编号从0到n-1,其中n是bucket的总数。 语法: unordered_s...
member functions C++11 unordered_set::begin C++11 unordered_set::bucket C++11 unordered_set::bucket_count C++11 unordered_set::bucket_size C++11 unordered_set::cbegin C++11 unordered_set::cend C++11 unordered_set::clear C++11 unordered_set::count C++11 unordered_set::emplace C++...
unordered_set load_factor() function in C++ STL unordered_set::load_factor()是 C++ STL 中的一个内置函数,它返回 unordered_set 容器中的当前负载因子。负载因子是容器中的元素个数(其大小)与桶数(bucket_count)的比值: load_factor = size / bucket_count ...
The following aliases are member types of unordered_set. They are widely used as parameter and return types by member functions: *Note: All iterators in an unordered_set point to const elements. Whether the const_ member type is the same type as its non-const_ counterpart depends on the pa...
Unordered set header Header that defines the unordered_set and unordered_multiset container classes: Classes unordered_set Unordered Set (class template ) unordered_multiset Unordered Multiset (class template ) Functions begin Iterator to beginning (function template ) end Iterator to end (function templa...
// unordered_set::begin/end example#include <iostream>#include <string>#include <unordered_set>intmain () { std::unordered_set<std::string> myset = {"Mercury","Venus","Earth","Mars","Jupiter","Saturn","Uranus","Neptune"}; std::cout <<"myset contains:";for(autoit = myset.begin...
unordered_set, unordered_multiset, unordered_map, unordered_multimap的底层实现皆为_Hashtable,定义于bits/hashtable.h。 以unordered_set 为例,它内含了一个指定了模板参数的_Hashtable。 //unordered_set.h37/// Base types for unordered_set.38template<bool_Cache>39using__uset_traits=__detail::_Hash...