std::pmr::polymorphic_allocator<T>::deallocate_bytes
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< cpp | memory | polymorphic allocator
C++
Memory management library
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std::pmr::polymorphic_allocator
Member functions | ||||
(C++20/26*)
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polymorphic_allocator::deallocate_bytes
(C++20)
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Non-member functions | ||||
(until C++20)
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void deallocate_bytes(
void
* p,
std::size_t nbytes, |
(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) ;
Parameters
p | - | pointer to memory to deallocate |
nbytes | - | the number of bytes originally allocated |
alignment | - | the alignment originally allocated |
Exceptions
Throws nothing.
Notes
This function was introduced for use with the fully-specialized allocator std::pmr::polymorphic_allocator <>
See also
(C++20)
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frees raw memory obtained by allocate_object (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> ) |
deallocates memory (public member function of std::pmr::memory_resource ) |