std::pmr::polymorphic_allocator<T>:: deallocate_object
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Member functions | ||||
(
C++20/26*
)
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polymorphic_allocator::deallocate_object
(C++20)
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Non-member functions | ||||
(until C++20)
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template
<
class
U
>
void deallocate_object ( U * p, std:: size_t n = 1 ) ; |
(since C++20) | |
Deallocates the storage pointed to by p , which must have been allocated from a std::pmr::memory_resource x that compares equal to * resource ( ) , using x. allocate ( n * sizeof ( U ) , alignof ( U ) ) , typically through a call to allocate_object < U > ( n ) .
Equivalent to deallocate_bytes ( p, n * sizeof ( U ) , alignof ( U ) ) ; .
Parameters
p | - | pointer to memory to deallocate |
n | - | number of objects of type U the memory was for |
Exceptions
Throws nothing.
Notes
This function was introduced for use with the fully-specialized allocator std:: pmr :: polymorphic_allocator <> , but it may be useful in any specialization.
See also
(C++20)
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free raw memory obtained from
allocate_bytes
(public member function) |
(C++20)
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destroys and deallocates an object
(public member function) |
[static]
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deallocates storage using the allocator
(public static member function of
std::allocator_traits<Alloc>
)
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deallocates memory
(public member function of
std::pmr::memory_resource
)
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