std::pmr::new_delete_resource
 Defined in header <memory_resource>  |  ||
|---|---|---|
 std::pmr::memory_resource* new_delete_resource() noexcept;  |  (since C++17) | 
Returns a pointer to a memory_resource that uses the global operator new and operator delete to allocate memory.
Return value
Returns a pointer p to a static storage duration object of a type derived from std::pmr::memory_resource, with the following properties:
-  its 
allocate()function uses::operator newto allocate memory; -  its 
deallocate()function uses::operator deleteto deallocate memory; -  for any 
memory_resourcer,p->is_equal(r)returns&r == p. 
The same value is returned every time this function is called.
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