std::experimental::pmr::null_memory_resource
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                    < cpp | experimental
                    
                                                            
                    |   Defined in header  
<experimental/memory_resource>
  | 
||
|   memory_resource* null_memory_resource(); 
 | 
(library fundamentals TS) | |
Returns a pointer to a memory_resource that doesn't perform any allocation.
[edit] Return value
Returns a pointer p to a static storage duration object of a type derived from std::experimental::pmr::memory_resource, with the following properties:
-  its 
allocate()function always throws std::bad_alloc; -  its 
deallocate()function has no effect; -  for any 
memory_resourcer,p->is_equal(r)returns&r == p. 
The same value is returned every time this function is called.
[edit] Exceptions
noexcept specification:  
noexcept