Example

class MyClass {
public:
void function();

private:
char *data;
};

Solution

Always implement an assignment operator for classes with references to memory.

class MyClass {
public:
void function();
MyClass& operator=(const MyClass& rightSide){
if (this == &rhs){
return *this;
}
else if(*data == rightSide;{
return *this;
}
}

private:
char *data;
};

Solution

Disable use of assignment by declaring one private.

class MyClass {
public:
void function();

private:
char *data;
MyClass& operator=(const MyClass& rightSide);
};