binary tree problem

[FARAECHILIBRU]

i'm building a binary tree the problem is when i'm reading from e text file .First i'm sending to tree builder function a empty node and e new node the function return me firt node of a tree, but when i try to built the secund node ,i dont anderstend whay, my program write to my new node and to first tree node;
string readLine(istrea m& fin)
{
char buff[256];

// Clear any remaining end of line characters
if(fin.peek()== '\n')
{
fin.ignore();
}
fin.getline(buf f, 256, '\n');
return string(buff);
}
Node* readFile(Node* tree)
{


string value[5];
Node* load=new Node();

int temp=0,i;
ifstream inFile("c://treeFile.txt");
// Open files
if (!inFile)
{
// Error
cout << "input file not found" << endl;
}
else
{
// Read input file until end reached

while (!inFile.eof())
{
// Read data from file
value[temp]=readLine(inFil e);

if(temp==4)
{

//Create node
load->name=value[0];
load->surname=valu e[1];
load->adress=value[2];
load->phoneNo=valu e[3];
load->Email=value[4];
load->value=charValo r(value[0]);
load->pLeft =0;
load->pRight =0;
//Build tree
tree=addNode(tr ee,load);

temp=0;
for(i=0;i<5;i++ )
{
value[i]="null";
}
}
else
{
temp++;
}


}

inFile.close();
return tree;
}

}
this are the function that build the nodes and read from file;

[gpraghuram]

How u have written the addnode function?
R u adding the new node to a proper position to right or left of first node depending on its value?

Raghu

[FARAECHILIBRU]

this is my addnode
Node* addNode(Node* tree, Node* toAdd)
{
if (toAdd == 0)
{
return tree;
}
else if (tree == 0|| tree->value==0)
{
return toAdd;
}
else if(toAdd->value != tree->value)
{
if(toAdd->value < tree->value)
{
tree->pLeft = addNode(tree->pLeft, toAdd);
return tree;
}
else
{
tree->pRight = addNode(tree->pRight, toAdd);
return tree;
}

}
else if(toAdd->surname == tree->surname)
{
return tree;

}
}
but when I try to put data in to Node* load
I get chenges in the Node* tree in the seame time
here:
tempPtr->value = value;
tempPtr->phoneNo=phon e;
tempPtr->name=nam;
tempPtr->surname=sNam ;
tempPtr->adress=adr;
tempPtr->Email=eM;

tempPtr->pLeft =0;
tempPtr->pRight =0;

[sicarie]

Please use code tags in your post

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