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std::uses_allocator<std::queue>

From cppreference.com
< cpp‎ | container‎ | queue
 
 
 
 
Defined in header <queue>
template< class T, class Container, class Alloc >

struct uses_allocator<std::queue<T, Container>, Alloc>

    : std::uses_allocator<Container, Alloc>::type {};
(since C++11)

Provides a transparent specialization of the std::uses_allocator type trait for std::queue: the container adaptor uses allocator if and only if the underlying container does.

Contents

Inherited from std::integral_constant

Member constants

value
[static]
true
(public static member constant)

Member functions

operator bool
converts the object to bool, returns value
(public member function)
operator()
(C++14)
returns value
(public member function)

Member types

Type Definition
value_type bool
type std::integral_constant<bool, value>

[edit] Example

#include <memory>
#include <queue>
 
static_assert(
    std::uses_allocator<std::queue<int>, void>::value == false &&
    std::uses_allocator<std::queue<int>, std::allocator<int>>::value == true
);
 
int main() {}

[edit] See also

checks if the specified type supports uses-allocator construction
(class template) [edit]