std::priority_queue::swap

 

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)

 

void swap( priority_queue& other ) noexcept(/* see below */);		(since C++11)

Exchanges the contents of the container adaptor with those of other. Effectively calls using std::swap; swap(c, other.c); swap(comp, other.comp);

Parameters

other

-

container adaptor to exchange the contents with

Return value

(none)

Exceptions

noexcept specification:   noexcept(noexcept(swap(c, other.c)) && noexcept(swap(comp, other.comp))) In the expression above, the identifier swap is looked up in the same manner as the one used by the C++17 std::is_nothrow_swappable trait.	(until C++17)
noexcept specification:   noexcept(std::is_nothrow_swappable<Container>::value && std::is_nothrow_swappable<Compare>::value)	(since C++17)

Complexity

Same as underlying container (typically constant)

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
LWG 2456	C++11	the noexcept specification is ill-formed	made to work

See also

std::swap(std::priority_queue)

specializes the std::swap algorithm (function template)