std::map
cppreference.com
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| <map> .
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template< class Key, class T, class Compare = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T> > > class map; |
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std::map Key Value .
Key Compare .
, .
Map - .
std::map meets the requirements of Container, AllocatorAwareContainer, AssociativeContainer and ReversibleContainer.
Member types
| Member type | Definition |
key_type
|
|
mapped_type
|
T
|
value_type
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std::pair<const Key, T>
|
size_type
|
(unsigned int) ( std::size_t) |
difference_type
|
(signed int) ( std::ptrdiff_t) |
key_compare
|
Compare
|
allocator_type
|
|
reference
|
Allocator::reference (until C++11)value_type& (since C++11)
|
const_reference
|
Allocator::const_reference (until C++11)const value_type& (since C++11)
|
pointer
|
Allocator::pointer (until C++11)std::allocator_traits<Allocator>::pointer (since C++11)
|
const_pointer
|
Allocator::const_pointer (until C++11)std::allocator_traits<Allocator>::const_pointer (since C++11)
|
iterator
|
BidirectionalIterator
|
const_iterator
|
(constant) (iterator) |
reverse_iterator
|
std::reverse_iterator<iterator>
|
const_reverse_iterator
|
std::reverse_iterator<const_iterator>
|
Member classes
compares objects of type value_type (class) |
Member functions
map . (public member function) | |
map . (public member function) | |
| . (public member function) | |
| . (public member function) | |
Element access | |
(C++11) |
access specified element with bounds checking (public member function) |
| (public member function) | |
Iterators | |
| (iterator) . (public member function) | |
| (iterator) . (public member function) | |
| (reverse iterator) . (public member function) | |
| (reverse iterator) . (public member function) | |
Capacity | |
| . (public member function) | |
| . (public member function) | |
| . (public member function) | |
Modifiers | |
| . (public member function) | |
| . (public member function) | |
(C++11) |
. (public member function) |
(C++11) |
constructs elements in-place using a hint (public member function) |
| (public member function) | |
| (public member function) | |
Lookup | |
| . (public member function) | |
| . (public member function) | |
| returns range of elements matching a specific key (public member function) | |
| returns an iterator to the first element not less than the given value (public member function) | |
| returns an iterator to the first element greater than a certain value (public member function) | |
Observers | |
| returns the function that compares keys (public member function) | |
| returns the function that compares keys in objects of type value_type (public member function) | |
Non-member functions
| lexicographically compares the values in the map (function template) | |
| specializes the std::swap algorithm (function template) |