template < class Key, // unordered_set::key_type/value_type class Hash = hash<Key>, // unordered_set::hasher class Pred = equal_to<Key>, // unordered_set::key_equal class Alloc = allocator<Key> // unordered_set::allocator_type > class unordered_set;
member type | definition | notes |
---|---|---|
key_type | the first template parameter (Key) | |
value_type | the first template parameter (Key) | The same as key_type |
hasher | the second template parameter (Hash) | defaults to: hash<key_type> |
key_equal | the third template parameter (Pred) | defaults to: equal_to<key_type> |
allocator_type | the fourth template parameter (Alloc) | defaults to: allocator<value_type> |
reference | Alloc::reference | |
const_reference | Alloc::const_reference | |
pointer | Alloc::pointer | for the default allocator: value_type* |
const_pointer | Alloc::const_pointer | for the default allocator: const value_type* |
iterator | a forward iterator to const value_type | * convertible to const_iterator |
const_iterator | a forward iterator to const value_type | * |
local_iterator | a forward iterator to const value_type | * convertible to const_local_iterator |
const_local_iterator | a forward iterator to const value_type | * |
size_type | an unsigned integral type | usually the same as size_t |
difference_type | a signed integral type | usually the same as ptrdiff_t |
member type | definition | notes |
---|---|---|
key_type | the first template parameter (Key) | |
value_type | the first template parameter (Key) | The same as key_type |
hasher | the second template parameter (Hash) | defaults to: hash<key_type> |
key_equal | the third template parameter (Pred) | defaults to: equal_to<key_type> |
allocator_type | the fourth template parameter (Alloc) | defaults to: allocator<value_type> |
reference | value_type& | |
const_reference | const value_type& | |
pointer | allocator_traits<Alloc>::pointer | for the default allocator: value_type* |
const_pointer | allocator_traits<Alloc>::const_pointer | for the default allocator: const value_type* |
iterator | a forward iterator to const value_type | * convertible to const_iterator |
const_iterator | a forward iterator to const value_type | * |
local_iterator | a forward iterator to const value_type | * convertible to const_local_iterator |
const_local_iterator | a forward iterator to const value_type | * |
size_type | an unsigned integral type | usually the same as size_t |
difference_type | a signed integral type | usually the same as ptrdiff_t |