std::allocator<T>::destroy
From cppreference.com
 
 
 
 
 
 C++ 
 Feature test macros (C++20)
 Concepts library (C++20)
 Metaprogramming library (C++11)
 Ranges library (C++20)
 Filesystem library (C++17)
 Concurrency support library (C++11)
 Execution control library (C++26)
Memory management library 
 
 
 
 
 
 
 
 
 
 
 
 
Uninitialized memory algorithms  
 
 
 
 
 
 
 
 
 
 
 
 Constrained uninitialized memory algorithms  
 
 
 
 
 
 
 
 
 
 
 
 Memory resources  
 
 
 
 
 
 
 
 
 
 
 Uninitialized storage (until C++20) 
 
 
 
 
 
 Garbage collector support (until C++23) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(exposition only*)
(C++11)
(C++23)
(C++11)
(C++17)
(C++11)
(C++11)
(C++20)
(C++20)
(C++17)
(C++11)
(C++17)
(C++20)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++20)
(C++20)
(C++20)
(C++20)
 (C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(until C++20*)
(until C++20*)
(until C++20*)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)
(C++11)
(C++17)
(C++20)
(C++17)
(C++11)
(C++11)
(C++11)
(until C++17*)
(C++11)
(C++17)
(C++26)
(C++26)
(C++11)
(C++11)
(C++11)
(C++23)
(C++23)
(C++11)
(C++20)
(C++11)
(C++11)
(C++20)
(C++26)
std::allocator 
 
 
 
 
 
 
 Member functions
(until C++20)
(C++23)
(until C++20)
(until C++20)
allocator::destroy
(until C++20)
 Non-member functions
(until C++20)
Defined in header 
 
 
<memory> 
 void destroy( pointer p );
 (1) 
 (until C++11) 
template< class U >
void destroy( U* p );
 (2) 
 (since C++11) void destroy( U* p );
(deprecated in C++17)
(removed in C++20)
Calls the destructor of the object pointed to by p.
1) Calls p->~T().
2) Calls p->~U().
[edit] Parameters
 p
 -
 pointer to the object that is going to be destroyed
[edit] Return value
(none)
[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior | 
|---|---|---|---|
| LWG 400 | C++98 | p was cast to T*, which is the type of p | removed the redundant cast |