std::experimental::atomic_shared_ptr::atomic_shared_ptr
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                    < cpp | experimental | atomic shared ptr
                    
                                                            
                    | constexpr atomic_shared_ptr(); | (1) | |
| constexpr atomic_shared_ptr( shared_ptr<T> desired ); | (2) | |
| atomic_shared_ptr( const atomic_shared_ptr& ) = delete; | (3) | |
Constructs a new atomic_shared_ptr object.
1) The default constructor initializes the object to an empty state.
2) Initializes the underlying 
shared_ptr<T> with desired. The initialization is not atomic.3) Atomic variables are not 
CopyConstructible.[edit] Parameters
| desired | - | value to initialize with | 
[edit] Exceptions
1-2) 
noexcept specification:  
noexcept
  

