move-assignment-operator

Move assignment operator and `if (this != &rhs)`

First, the Copy and Swap is not always the correct way to implement Copy Assignment. Almost certainly in the case of dumb_array, this is a sub-optimal solution. The use of Copy and Swap is for dumb_array is a classic example of putting the most expensive operation with the fullest features at the bottom layer. It … Read more

Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?

In the following, “auto-generated” means “implicitly declared as defaulted, but not defined as deleted”. There are situations where the special member functions are declared, but defined as deleted. The default constructor is auto-generated if there is no user-declared constructor (§12.1/5). The copy constructor is auto-generated if there is no user-declared move constructor or move assignment … Read more