std::array
From cppreference.com
Defined in header <array>
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||
template< class T, |
(since C++11) | |
array
is a container that encapsulates constant size arrays.
This struct is designed to provide the benefits of a standard container (an array knows its own size, supports assignment, random access iterators, etc.) while still providing the aggregate type semantics of C-style arrays.
There is a special case for a zero-length array (N == 0
). In that case, array.begin() == array.end()
, which is some unique value. The effect of calling front()
or back()
on a zero-sized array is undefined.
array
is a class aggregate which allows it to use aggregate-initialization.
Contents |
[edit] Member types
Member type | Definition |
value_type | T |
size_type | size_t |
difference_type | ptrdiff_t |
reference | value_type& |
const_reference | const value_type& |
pointer | T* |
const_pointer | const T* |
iterator | RandomAccessIterator |
const_iterator | Constant random access iterator |
reverse_iterator
|
std::reverse_iterator<iterator> |
const_reverse_iterator
|
std::reverse_iterator<const_iterator> |
[edit] Member functions
Element access | |
access specified element with bounds checking (public member function) | |
access specified element (public member function) | |
access the first element (public member function) | |
access the last element (public member function) | |
(C++11) |
direct access to the underlying array (public member function) |
Iterators | |
returns an iterator to the beginning (public member function) | |
returns an iterator to the end (public member function) | |
returns a reverse iterator to the beginning (public member function) | |
returns a reverse iterator to the end (public member function) | |
Capacity | |
checks whether the container is empty (public member function) | |
returns the number of elements (public member function) | |
returns the maximum possible number of elements (public member function) | |
Operations | |
fill the container with specified value (public member function) | |
swaps the contents (public member function) |
[edit] Non-member functions
lexicographically compares the values in the array (function template) | |
accesses an element of an array (function template) | |
specializes the std::swap algorithm (function template) |
[edit] Helper classes
obtains the size of an array (class template specialization) | |
obtains the type of the elements of array (class template specialization) |