Doubt in Trees and pointers

I made a Tree using a class

class node
int data;
node* left;
node* right;

i have a doubt … if i swap two nodes.

1 -> swap(temp->left,temp->right)
2 -> swap(*temp->left,*temp->right)

what is the difference between the two ways?
how does the links with parents are affected in two ways.

format the code or end a link or something


here it is.

i just want to know the general difference between the two swaps.
if i swap any two nodes in the tree.