From cppreference.com
template<classT,classContainer,classAlloc>structuses_allocator<std::stack<T,Container>,Alloc>:std::uses_allocator<Container,Alloc>::type{};(since C++11)Provides a transparent specialization of the
type trait for std::stack: the container adaptor uses allocator if and only if the underlying container does.
Inherited from
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_typebooltypestd::integral_constant<bool,value>Example
Run this code
#include<memory>#include<stack>static_assert(std::uses_allocator<std::stack<int>,void>::value==false&&std::uses_allocator<std::stack<int>,std::allocator<int>>::value==true);intmain(){}See also
(C++11)
checks if the specified type supports uses-allocator construction
(class template)