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容器 | Containers
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Containers library
Node handle
operators (std::array)
operators (std::deque)
operators (std::forward_list)
operators (std::list)
operators (std::map)
operators (std::multimap)
operators (std::multiset)
operators (std::queue)
operators (std::set)
operators (std::stack)
operators (std::unordered_multimap)
operators (std::unordered_multiset)
operators (std::unordered_set)
operators (std::vector)
remove_if
remove_if
std::array
std::array::at
std::array::back
std::array::begin
std::array::cbegin
std::array::cend
std::array::crbegin
std::array::crend
std::array::data
std::array::empty
std::array::end
std::array::fill
std::array::front
std::array::max_size
std::array::operator[]
std::array::rbegin
std::array::rend
std::array::size
std::array::swap
std::deque
std::deque::assign
std::deque::at
std::deque::back
std::deque::begin
std::deque::cbegin
std::deque::cend
std::deque::clear
std::deque::crbegin
std::deque::crend
std::deque::deque
std::deque::emplace
std::deque::emplace_back
std::deque::emplace_front
std::deque::empty
std::deque::end
std::deque::erase
std::deque::front
std::deque::get_allocator
std::deque::insert
std::deque::max_size
std::deque::operator[]
std::deque::pop_back
std::deque::pop_front
std::deque::push_back
std::deque::push_front
std::deque::rbegin
std::deque::rend
std::deque::resize
std::deque::shrink_to_fit
std::deque::size
std::deque::swap
std::forward_list
std::forward_list::assign
std::forward_list::before_begin
std::forward_list::begin
std::forward_list::cbegin
std::forward_list::cend
std::forward_list::clear
std::forward_list::emplace_after
std::forward_list::emplace_front
std::forward_list::empty
std::forward_list::end
std::forward_list::erase_after
std::forward_list::forward_list
std::forward_list::front
std::forward_list::get_allocator
std::forward_list::insert_after
std::forward_list::max_size
std::forward_list::merge
std::forward_list::pop_front
std::forward_list::push_front
std::forward_list::remove
std::forward_list::resize
std::forward_list::reverse
std::forward_list::sort
std::forward_list::splice_after
std::forward_list::swap
std::forward_list::unique
std::get(std::array)
std::hash
std::list
std::list::assign
std::list::back
std::list::begin
std::list::cbegin
std::list::cend
std::list::clear
std::list::crbegin
std::list::crend
std::list::emplace
std::list::emplace_back
std::list::emplace_front
std::list::empty
std::list::end
std::list::erase
std::list::front
std::list::get_allocator
std::list::insert
std::list::list
std::list::max_size
std::list::merge
std::list::pop_back
std::list::pop_front
std::list::push_back
std::list::push_front
std::list::rbegin
std::list::remove
std::list::rend
std::list::resize
std::list::reverse
std::list::size
std::list::sort
std::list::splice
std::list::swap
std::list::unique
std::map
std::map::at
std::map::begin
std::map::cbegin
std::map::cend
std::map::clear
std::map::count
std::map::crbegin
std::map::crend
std::map::emplace
std::map::emplace_hint
std::map::empty
std::map::end
std::map::equal_range
std::map::erase
std::map::extract
std::map::find
std::map::get_allocator
std::map::insert
std::map::insert_or_assign
std::map::key_comp
std::map::lower_bound
std::map::map
std::map::max_size
std::map::merge
std::map::operator[]
std::map::rbegin
std::map::rend
std::map::size
std::map::swap
std::map::try_emplace
std::map::upper_bound
std::map::value_comp
std::map::value_compare
std::multimap
std::multimap::begin
std::multimap::cbegin
std::multimap::cend
std::multimap::clear
std::multimap::count
std::multimap::crbegin
std::multimap::crend
std::multimap::emplace
std::multimap::emplace_hint
std::multimap::empty
std::multimap::end
std::multimap::equal_range
std::multimap::erase
std::multimap::extract
std::multimap::find
std::multimap::get_allocator
std::multimap::insert
std::multimap::key_comp
std::multimap::lower_bound
std::multimap::max_size
std::multimap::merge
std::multimap::multimap
std::multimap::rbegin
std::multimap::rend
std::multimap::size
std::multimap::swap
std::multimap::upper_bound
std::multimap::value_comp
std::multimap::value_compare
std::multiset
std::multiset::begin
std::multiset::cbegin
std::multiset::cend
std::multiset::clear
std::multiset::count
std::multiset::crbegin
std::multiset::crend
std::multiset::emplace
std::multiset::emplace_hint
std::multiset::empty
std::multiset::end
std::multiset::equal_range
std::multiset::erase
std::multiset::extract
std::multiset::find
std::multiset::get_allocator
std::multiset::insert
std::multiset::key_comp
std::multiset::lower_bound
std::multiset::max_size
std::multiset::merge
std::multiset::multiset
std::multiset::rbegin
std::multiset::rend
std::multiset::size
std::multiset::swap
std::multiset::upper_bound
std::multiset::value_comp
std::priority_queue
std::priority_queue::emplace
std::priority_queue::empty
std::priority_queue::pop
std::priority_queue::priority_queue
std::priority_queue::push
std::priority_queue::size
std::priority_queue::swap
std::priority_queue::top
std::queue
std::queue::back
std::queue::emplace
std::queue::empty
std::queue::front
std::queue::pop
std::queue::push
std::queue::queue
std::queue::size
std::queue::swap
std::set
std::set::begin
std::set::cbegin
std::set::cend
std::set::clear
std::set::count
std::set::crbegin
std::set::crend
std::set::emplace
std::set::emplace_hint
std::set::empty
std::set::end
std::set::equal_range
std::set::erase
std::set::extract
std::set::find
std::set::get_allocator
std::set::insert
std::set::key_comp
std::set::lower_bound
std::set::max_size
std::set::merge
std::set::rbegin
std::set::rend
std::set::set
std::set::size
std::set::swap
std::set::upper_bound
std::set::value_comp
std::stack
std::stack::emplace
std::stack::empty
std::stack::pop
std::stack::push
std::stack::size
std::stack::stack
std::stack::swap
std::stack::top
std::swap(std::array)
std::swap(std::deque)
std::swap(std::forward_list)
std::swap(std::list)
std::swap(std::map)
std::swap(std::multimap)
std::swap(std::multiset)
std::swap(std::priority_queue)
std::swap(std::queue)
std::swap(std::set)
std::swap(std::stack)
std::swap(std::unordered_map)
std::swap(std::unordered_multimap)
std::swap(std::unordered_multiset)
std::swap(std::unordered_set)
std::swap(std::vector)
std::tuple_element<std::array>
std::tuple_size(std::array)
std::unordered_map
std::unordered_map::at
std::unordered_map::begin
std::unordered_map::begin(int)
std::unordered_map::bucket
std::unordered_map::bucket_count
std::unordered_map::bucket_size
std::unordered_map::cbegin
std::unordered_map::cbegin
std::unordered_map::cend
std::unordered_map::cend
std::unordered_map::clear
std::unordered_map::count
std::unordered_map::emplace
std::unordered_map::emplace_hint
std::unordered_map::empty
std::unordered_map::end
std::unordered_map::end(int)
std::unordered_map::equal_range
std::unordered_map::erase
std::unordered_map::extract
std::unordered_map::find
std::unordered_map::get_allocator
std::unordered_map::hash_function
std::unordered_map::insert
std::unordered_map::insert_or_assign
std::unordered_map::key_eq
std::unordered_map::load_factor
std::unordered_map::max_bucket_count
std::unordered_map::max_load_factor
std::unordered_map::max_size
std::unordered_map::merge
std::unordered_map::operator[]
std::unordered_map::rehash
std::unordered_map::reserve
std::unordered_map::size
std::unordered_map::swap
std::unordered_map::try_emplace
std::unordered_map::unordered_map
std::unordered_multimap
std::unordered_multimap::begin
std::unordered_multimap::begin(int)
std::unordered_multimap::bucket
std::unordered_multimap::bucket_count
std::unordered_multimap::bucket_size
std::unordered_multimap::cbegin
std::unordered_multimap::cbegin
std::unordered_multimap::cend
std::unordered_multimap::cend
std::unordered_multimap::clear
std::unordered_multimap::count
std::unordered_multimap::emplace
std::unordered_multimap::emplace_hint
std::unordered_multimap::empty
std::unordered_multimap::end
std::unordered_multimap::end(int)
std::unordered_multimap::equal_range
std::unordered_multimap::erase
std::unordered_multimap::extract
std::unordered_multimap::find
std::unordered_multimap::get_allocator
std::unordered_multimap::hash_function
std::unordered_multimap::insert
std::unordered_multimap::key_eq
std::unordered_multimap::load_factor
std::unordered_multimap::max_bucket_count
std::unordered_multimap::max_load_factor
std::unordered_multimap::max_size
std::unordered_multimap::merge
std::unordered_multimap::rehash
std::unordered_multimap::reserve
std::unordered_multimap::size
std::unordered_multimap::swap
std::unordered_multimap::unordered_multimap
std::unordered_multiset
std::unordered_multiset::begin
std::unordered_multiset::begin(int)
std::unordered_multiset::bucket
std::unordered_multiset::bucket_count
std::unordered_multiset::bucket_size
std::unordered_multiset::cbegin
std::unordered_multiset::cbegin
std::unordered_multiset::cend
std::unordered_multiset::cend
std::unordered_multiset::clear
std::unordered_multiset::count
std::unordered_multiset::emplace
std::unordered_multiset::emplace_hint
std::unordered_multiset::empty
std::unordered_multiset::end
std::unordered_multiset::end(int)
std::unordered_multiset::equal_range
std::unordered_multiset::erase
std::unordered_multiset::extract
std::unordered_multiset::find
std::unordered_multiset::get_allocator
std::unordered_multiset::hash_function
std::unordered_multiset::insert
std::unordered_multiset::key_eq
std::unordered_multiset::load_factor
std::unordered_multiset::max_bucket_count
std::unordered_multiset::max_load_factor
std::unordered_multiset::max_size
std::unordered_multiset::merge
std::unordered_multiset::rehash
std::unordered_multiset::reserve
std::unordered_multiset::size
std::unordered_multiset::swap
std::unordered_multiset::unordered_multiset
std::unordered_set
std::unordered_set::begin
std::unordered_set::begin(int)
std::unordered_set::bucket
std::unordered_set::bucket_count
std::unordered_set::bucket_size
std::unordered_set::cbegin
std::unordered_set::cbegin
std::unordered_set::cend
std::unordered_set::cend
std::unordered_set::clear
std::unordered_set::count
std::unordered_set::emplace
std::unordered_set::emplace_hint
std::unordered_set::empty
std::unordered_set::end
std::unordered_set::end(int)
std::unordered_set::equal_range
std::unordered_set::erase
std::unordered_set::extract
std::unordered_set::find
std::unordered_set::get_allocator
std::unordered_set::hash_function
std::unordered_set::insert
std::unordered_set::key_eq
std::unordered_set::load_factor
std::unordered_set::max_bucket_count
std::unordered_set::max_load_factor
std::unordered_set::max_size
std::unordered_set::merge
std::unordered_set::rehash
std::unordered_set::reserve
std::unordered_set::size
std::unordered_set::swap
std::unordered_set::unordered_set
std::uses_allocator<std::priority_queue>
std::uses_allocator<std::queue>
std::uses_allocator<std::stack>
std::vector
std::vector::assign
std::vector::at
std::vector::back
std::vector::begin
std::vector::capacity
std::vector::cbegin
std::vector::cend
std::vector::clear
std::vector::crbegin
std::vector::crend
std::vector::data
std::vector::emplace
std::vector::emplace_back
std::vector::empty
std::vector::end
std::vector::erase
std::vector::front
std::vector::get_allocator
std::vector::insert
std::vector::max_size
std::vector::operator[]
std::vector::pop_back
std::vector::push_back
std::vector::rbegin
std::vector::rend
std::vector::reserve
std::vector::resize
std::vector::shrink_to_fit
std::vector::size
std::vector::swap
std::vector::vector
std::vector<bool>
std::vector<bool>::flip
std::vector<bool>::reference
std::vector<bool>::swap
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operators (std::unordered_map)

operator==,!=(std::unordered_map)

template< class Key, class T, class Hash, class KeyEqual, class Allocator > bool operator==( const unordered_map& lhs, const unordered_map& rhs (1)​
template< class Key, class T, class Hash, class KeyEqual, class Allocator > bool operator!=( const unordered_map<Key,T,Hash,KeyEqual,Allocator>& lhs, const unordered_map<Key,T,Hash,KeyEqual,Allocator>& rhs (2)​

Compares the contents of two unordered containers.

The contents of two unordered containers lhs and rhs are equal if the following conditions hold:

  • lhs.size() == rhs.size()

The behavior is undefined if Key or T are not EqualityComparable.

The behavior is also undefined if Hash and KeyEqual do not have the same behavior on lhs and rhs or if operator== for value_type is not a refinement of the partition into equivalent-key groups introduced by KeyEqual (that is, if two elements that compare equal using operator== fall into different partitions).

Parameters

lhs, rhs-unordered containers to compare

Return value

1) true if the contents of the containers are equal, false otherwise

2) true if the contents of the containers are not equal, false otherwise

Complexity

Proportional to N calls to operator== on value_type, calls to the predicate returned by key_eq, and calls to the hasher returned by hash_function, in the average case, proportional to N2 in the worst case where N is the size of the container.

 © cppreference.com

Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.

http://en.cppreference.com/w/cpp/container/unordered_map/operator_cmp

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