Question

I wrote this Node class and = operator overload function and this is the only way I could get it to compile and run but it just overflows and bomb my program. Can someone please fix it so it works. I don’t have a lot of experience with overloading operator in C++. I just want to set a Node object equal to another Node object. Thanks in advance!

class Node
{ 
   public:
      Node();
      int y;
      Node& operator=(const Node& n);
};

Node::Node(){ y = -1; }
Node& Node::operator=(const Node& n) { return *this = n; }

.

Build issues:
1>c:\users\aaron mckellar\documents\school stuff\cs445\test\test\main.cpp(57) : warning C4717: 'Node::operator=' : recursive on all control paths, function will cause runtime stack overflow
1>Linking...
1>LINK : C:\Users\Aaron McKellar\Documents\School Stuff\CS445\Test\Debug\Test.exe not found or not built by the last incremental link; performing full link

Answer 1

in your operator= you need to do the work of setting the member variables equal to the passed in Node’s value.

Node& Node::operator=(const Node& n) 
{ 
    y = n.y;
    return *this; 
}

A corresponding example of what you did in English: The definition of a dog is a dog. Instead of saying the definition of a dog is a domesticated form of the wolf, a member of the Canidae family of the order Carnivora.