CODEWITHSUNDEEP
c++linked-listnodes
TheNodeCommode
TheNodeCommode

Reputation: 93

Setting node pointer to null

First of all. I appreciate the help guys!

This is the problem.Trying to set one of list's edges to null

list[i].getAttachedNode(j) = 0;

This is the error.

Prj3.cpp:165:34: error: lvalue required as left operand of assignment

This is my list decleration.

Node list[47];

This is the attachedNode implementation.

Node* Node::getAttachedNode(int direction) {return attachedNode[direction];}

[b]Here is the block its contained in.

for(int i = 0; i<48; i++)
      {
        for(int j = 0; j<6; j++)
        {  
        string info = g.returnInfo(i,j);

            switch(j)
                {
            case 0:
            list[i].setNodeName(info);
            break;
            case 1:
            if(info.compare(null) == 0)
            {list[i].getAttachedNode(j) = 0;}
            break;
                }
        }
    }

Upvotes: 0

Views: 872

Answers (1)

Luchian Grigore
Luchian Grigore

Reputation: 258618

The error is pretty clear:

list[i].getAttachedNode(j)

is an r-value, so it can't be assigned to. Just have getAttachedNode return a reference:

Node*& Node::getAttachedNode(int direction) {return attachedNode[direction];}

Upvotes: 1

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