std::atomic::operator=
From cppreference.com
                    
                                        
                    
                    
                                                            
                    | (1) | (since C++11) | |
| T operator=( T desired ); | ||
| T operator=( T desired ) volatile; | (1) | (since C++11) | 
| (2) | (since C++11) | |
| atomic& operator=( const atomic& ) = delete; | ||
| atomic& operator=( const atomic& ) volatile = delete; | ||
1) Atomically assigns a value 
t to the atomic variable. Equivalent to store(desired).2) Atomic variables are not 
CopyAssignable.| Contents | 
[edit] Parameters
| desired | - | value to assign | 
[edit] Return value
desired.
[edit] Exceptions
noexcept specification:  
noexcept
  [edit] Notes
Unlike most assignment operators, the assignment operators for atomic types do not return a reference to their left-hand arguments. They return a copy of the stored value instead.
[edit] See also
| constructs an atomic object (public member function) | 


