Thread: Binary Tree 911

Hi all I'm so close to getting this stupid binary tree to work except I keep getting some wack ass error message. It says
and I quote error C2440: '=' : cannot convert from 'char' to 'char12]'
observe the code

Code:

#include <iostream>
#include <string>
using namespace std;


struct node
{
    char info[12];
    node *left;
    node *right;
};

								//The line below should be in main and you should probably
								//not be allocating memory for a new node at this point,
								//that will be done in the insert function, you
								//should just set it to NULL in main
								// Forgot to add the return types for the two functions below
void preorder(node *p);
void inorder(node *p);		    //is this the correct syntax for declaring the function?

void insert(node *&p, char string[12]);   //for user defined functions using pointers?

void insert(node *&p, char string[12])    // This differs from the function prototype you provided above
{ 
    if(p==NULL)
    {
        p=new(node); 
        p->info = string[12];   
        p->left=NULL;
        p->right=NULL;
    }
    else if(string < p->info) 
    {
        insert(p->left,  string);
    }
    else   insert(p->right, string);
}  // You were missing an ending bracket, add this

void inorder(node *p)
{
    if(p!=NULL)
    {
        inorder(p->left);
        cout<<p->info<<"  ";
        inorder(p->right);
    }

}
void preorder(node *p)
{
	
	if(p!=NULL)
	{
		cout<<p->info<<"  ";
		preorder( p->left);
		preorder(p->right);
	}
}


int main() // main should always return an int
{
    node *root=NULL;
	char string[12];
	for(int i=0; i<6; ++i)
	{
		cout<<"Enter the value for your node: ";
		 cin.getline(string, 11, '\n');
		insert(root, string[12]); // Your insert function takes two parameters but you only provide one
	}
	inorder(root);
	cout<<endl;
	preorder(root);
	return 0;
}

anyhow could anyone out there give me some feedback on where I'm going wrong here.

> insert(root, string[12]); // Your insert function
To pass an array to a function, you just write it's name

insert(root, string);

> error C2440: '=' : cannot convert from 'char' to 'char12]'
Well yes, because string[12] is an element of the array (a char), and string is the array.