std::array<T,N>::back
From cppreference.com
reference back(); |
(1) | (since C++11) (constexpr since C++17) |
const_reference back() const; |
(2) | (since C++11) (constexpr since C++14) |
Returns a reference to the last element in the container.
|
If empty() is true, the behavior is undefined. |
(until C++26) |
|
If empty() is true:
|
(since C++26) |
Contents |
[edit] Return value
Reference to the last element.
[edit] Complexity
Constant.
[edit] Notes
For a non-empty container c, the expression c.back() is equivalent to *std::prev(c.end()).
[edit] Example
Run this code
#include <cassert> #include <array> int main() { std::array<char, 4> letters{'a', 'b', 'c', 'd'}; assert(letters.back() == 'd'); }
[edit] See also
| access the first element (public member function) | |
| returns a reverse iterator to the beginning (public member function) | |
| returns an iterator to the end (public member function) |
