std::priority_queue::top

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

span (C++20)

std::priority_queue

Member functions

priority_queue::priority_queue

priority_queue::~priority_queue

priority_queue::operator=

Element access

priority_queue::top

Capacity

priority_queue::empty

priority_queue::size

Modifiers

priority_queue::push

priority_queue::emplace

priority_queue::pop

priority_queue::swap

Deduction guides(C++17)

const_reference top() const;

Returns reference to the top element in the priority queue. This element will be removed on a call to pop(). If default comparison function is used, the returned element is also the greatest among the elements in the queue.

Parameters

(none)

Return value

Reference to the top element as if obtained by a call to c.front()

Complexity

Constant.

See also

pop	removes the top element (public member function)