std::allocator<T>::destroy

 

C++

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Dynamic memory management

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Uninitialized memory algorithms uninitialized_copy uninitialized_fill uninitialized_move (C++17) uninitialized_default_construct (C++17) uninitialized_value_construct (C++17) destroy (C++17) destroy_at (C++17) uninitialized_copy_n (C++11) uninitialized_fill_n uninitialized_move_n (C++17) uninitialized_default_construct_n (C++17) uninitialized_value_construct_n (C++17) destroy_n (C++17) construct_at (C++20) Constrained uninitialized memory algorithms ranges::uninitialized_copy (C++20) ranges::uninitialized_fill (C++20) ranges::uninitialized_move (C++20) ranges::uninitialized_default_construct (C++20) ranges::uninitialized_value_construct (C++20) ranges::destroy (C++20) ranges::destroy_at (C++20) ranges::uninitialized_copy_n (C++20) ranges::uninitialized_fill_n (C++20) ranges::uninitialized_move_n (C++20) ranges::uninitialized_default_construct_n (C++20) ranges::uninitialized_value_construct_n (C++20) ranges::destroy_n (C++20) ranges::construct_at (C++20) Garbage collection support declare_reachable (C++11)(until C++23) undeclare_reachable (C++11)(until C++23) declare_no_pointers (C++11)(until C++23) undeclare_no_pointers (C++11)(until C++23) pointer_safety (C++11)(until C++23) get_pointer_safety (C++11)(until C++23) Miscellaneous pointer_traits (C++11) to_address (C++20) addressof (C++11) align (C++11) assume_aligned (C++20) C Library malloc aligned_alloc (C++17) calloc realloc free Low level memory management operator new operator new[] operator delete operator delete[] get_new_handler set_new_handler bad_alloc bad_array_new_length nothrow_t align_val_t destroying_delete_t new_handler nothrow

 

std::allocator

Member functions

allocator::allocator

allocator::~allocator

allocator::address (until C++20)

allocator::allocate

allocator::allocate_at_least (C++23)

allocator::deallocate

allocator::max_size (until C++20)

allocator::construct (until C++20)

allocator::destroy (until C++20)

Non-member functions

operator==operator!= (until C++20)

 

Defined in header <memory>
void destroy( pointer p );		(until C++11)
template< class U > void destroy( U* p );		(since C++11) (deprecated in C++17) (removed in C++20)

Calls the destructor of the object pointed to by p

1) Calls ((T*)p)->~T()

2) Calls p->~U()

Parameters

p

-

pointer to the object that is going to be destroyed

Return value

(none)

See also

destroy [static]

destructs an object stored in the allocated storage (function template)