My code is working now.
On Mar 11, 3:08 am, sun <hy...@gmail.com> wrote:
I have a tree structure defined as Nodes with parent and children. a
tree class holds traverse function and other functions.
When traversing the tree with its nodes, I 'd pass one of the function
in node, func1() as parameters, is it possible? if so, how to define
that?
class Node{
....
public:
func1();//do sth}
class Tree{
Node* root;
..
public:
traverse(Node,func1);
}
Thanks!
Yes by using to pointer to member functions and here is a compilable
example.
#include <iostream>
class Node{
public:
void func1(){std::cout<<"called";}//do sth
};
class Tree{
public:
Node* root;
void traverse(Node* node,void (Node::*funcptr)()){
(node->*funcptr)();
}
};
int main()
{
Node* nodeptr = new Node;
Tree tree;
tree.traverse(nodeptr,&Node::func1);
}
also check out http://www.parashift.com/c++-faq/pointers-to-members.html