std::allocator_traits<Alloc>::destroy

 

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std::allocator_traits

Member functions

allocator_traits::allocate

allocator_traits::deallocate

allocator_traits::construct

allocator_traits::destroy

allocator_traits::max_size

allocator_traits::select_on_container_copy_construction

 

Defined in header <memory>
template< class T > static void destroy( Alloc& a, T* p );		(since C++11) (until C++20)
template< class T > static constexpr void destroy( Alloc& a, T* p );		(since C++20)

Calls the destructor of the object pointed to by p. If possible, does so by calling a.destroy(p). If not possible (e.g. Alloc does not have the member function destroy()), then calls the destructor of *p directly, as p->~T() (until C++20)std::destroy_at(p) (since C++20).

Parameters

a	-	allocator to use for destruction
p	-	pointer to the object being destroyed

Return value

(none)

Notes

Because this function provides the automatic fall back to direct call to the destructor, the member function destroy() is an optional Allocator requirement since C++11.

See also

destroy (deprecated in C++17)(removed in C++20)

destructs an object in allocated storage (public member function of std::allocator<T>)