std::queue<T,Container>::front
From cppreference.com
C++
Containers library
(C++17) | ||||
| Sequence | ||||
(C++11) | ||||
(C++26) | ||||
(C++26) | ||||
(C++11) | ||||
| Associative | ||||
| Unordered associative | ||||
(C++11) | ||||
(C++11) | ||||
(C++11) | ||||
(C++11) | ||||
| Adaptors | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
| Views | ||||
(C++20) | ||||
(C++23) | ||||
| Tables | ||||
| Iterator invalidation | ||||
| Member function table | ||||
| Non-member function table |
std::queue| Member functions | ||||
| Element access | ||||
queue::front | ||||
| Capacity | ||||
| Modifiers | ||||
(C++23) | ||||
(C++11) | ||||
(C++11) | ||||
| Non-member functions | ||||
(C++11) | ||||
| Helper classes | ||||
(C++11) | ||||
(C++23) | ||||
| Deduction guides(C++17) |
| reference front(); |
|
| const_reference front() const; |
|
Returns reference to the first element in the queue. This element will be the first element to be removed on a call to pop(). Effectively calls c.front().
Contents |
[edit] Parameters
(none)
[edit] Return value
Reference to the first element.
[edit] Complexity
Constant.
[edit] See also
| access the last element (public member function) [edit] | |
| removes the first element (public member function) [edit] |