Assignment Operator in C++

Step for assignment operator

1. check for self assignment
2. call base assignment operator. // this should take care for copy constructor.
3. remove existing allocated memory for members
4. assign memory for members
5. do assignment for all data members.
6. return *this.

Derived& Derived::operator=(const Derived& rhs) { if (this == &rhs) return *this;

// equality based on address or value identity.

static_cast<Base&>(*this) = rhs;

// call this->Base::operator=

y = rhs.y; return *this; }

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