std::experimental::atomic_weak_ptr::is_lock_free
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                    < cpp | experimental | atomic weak ptr
                    
                                                            
                    | bool is_lock_free() const; | ||
Checks whether the atomic operations on all objects of this type are lock-free.
Parameters
(none)
Return value
true if the atomic operations on the objects of this type are lock-free, false otherwise.
Exceptions
noexcept specification:  
noexcept
  See also
| specializes atomic operations for std::shared_ptr (function template) |