c++ - Operator overloading -

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why overloaded operator= mandated member function ($13.5.3), not compound assignment operator e.g. operator+= ($13.5.2)? overlooking here?

a copy assignment operator=, member, provided compiler if user doesn't define one. believe simplicity , avoid unexpected ambiguities made requirement operator= can't defined free function.

conversion operators take care of case when want assign user-defined type built-in type.


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