misc-unconventional-assign-operator

Finds declarations of assign operators with the wrong return and/or argument types and definitions with good return type but wrong return statements.

• The return type must be Class&.

• The assignment may be from the class type by value, const lvalue reference, non-const rvalue reference, or from a completely different type (e.g. int).

• Private and deleted operators are ignored.

• The operator must always return *this.