std::queue

 

C++

Compiler support

Freestanding and hosted

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Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

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Concepts library (C++20)

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Iterators library

Ranges library (C++20)

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Filesystem library (C++17)

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Technical specifications

Symbols index

External libraries

 

Containers library

Sequence

array (C++11)

vector

vector<bool>

inplace_vector (C++26)

deque

forward_list (C++11)

list

Associative

set

multiset

map

multimap

Unordered associative

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

Adaptors

stack

queue

priority_queue

flat_set (C++23)

flat_multiset (C++23)

flat_map (C++23)

flat_multimap (C++23)

Views

span (C++20)

mdspan (C++23)

Tables

Iterator invalidation

Member function table

Non-member function table

 

std::queue

Member functions

queue::queue

queue::~queue

queue::operator=

Element access

queue::front

queue::back

Capacity

queue::empty

queue::size

Modifiers

queue::push

queue::push_range (C++23)

queue::emplace (C++11)

queue::pop

queue::swap (C++11)

Non-member functions

swap(std::queue) (C++11)

operator==operator!=operator<operator>operator<=operator>=operator<=> (C++20)

Helper classes

uses_allocator<std::queue> (C++11)

formatter<std::queue> (C++23)

Deduction guides(C++17)

 

Defined in header <queue>
template<     class T,     class Container = std::deque<T> > class queue;

The std::queue class is a container adapter that gives the programmer the functionality of a queue - specifically, a FIFO (first-in, first-out) data structure.

Member types

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Member type

Definition

Member functions

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Element access

Capacity

Modifiers

Member objects

Non-member functions

Template:cpp/container/dcl list operator cmpTemplate:cpp/container/dcl list swap2

Helper classes

Template:cpp/container/dcl list uses allocator