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std::pmr::polymorphic_allocator<T>::deallocate_bytes

From cppreference.com
 
 
Dynamic memory management
Smart pointers
(C++11)
(C++11)
(C++11)
(until C++17)
(C++11)
Allocators
Memory resources
Uninitialized storage
Uninitialized memory algorithms
Constrained uninitialized memory algorithms
Garbage collection support
Miscellaneous
(C++20)
(C++11)
(C++11)
C Library
Low level memory management
 
 
void deallocate_bytes( void* p,

                       std::size_t nbytes,

                       std::size_t alignment = alignof(std::max_align_t) );
(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(nbytes, alignment), typically through a call to allocate_bytes(nbytes, alignment).

Equivalent to resource()->deallocate(p, nbytes, alignment);

Contents

[edit] Parameters

p - pointer to memory to deallocate
nbytes - the number of bytes originally allocated
alignment - the alignment originally allocated

[edit] Exceptions

Throws nothing.

[edit] Notes

This function was introduced for use with the fully-specialized allocator std::polymorphic_allocator<>, but it may be useful in any specialization.

[edit] See also

Frees raw memory obtained by allocate_object
(public member function) [edit]
Destroys and deallocates an object
(public member function) [edit]
[static]
deallocates storage using the allocator
(public static member function of std::allocator_traits<Alloc>) [edit]
deallocates memory
(public member function of std::pmr::memory_resource) [edit]