std::atomic_ref<T>::atomic_ref

explicit atomic_ref( T& obj );	(1)	(since C++20)
atomic_ref( const atomic_ref& ref ) noexcept;	(2)	(since C++11)

Constructs a new atomic_ref object.

1) Constructs an atomic_ref object referencing the object obj. The behavior is undefined if obj is not aligned to required_alignment.

2) Constructs an atomic_ref object referencing the object referenced by ref.

obj	-	object to reference
ref	-	another `atomic_ref` object to copy from

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/atomic/atomic_ref/atomic_ref