pointers

[Unregistered]

hello im trying to figure out linked lists and pointers in the following example can someone please explane the spacing and location of the * and what the spacing and location do to the prog
struct cmdlist * add_command(struct node* head, struct node* tail){
struct cmdlist *commandlist=(struct cmdlist*)malloc(sizeof(struct cmdlist*));

also
what is the dif between node* head
and node *head

thanks in advance
confused with pointers

[Prelude]

>struct cmdlist * add_command(struct node* head, struct node* tail){
This is a function called add_command that takes a pointer to the first and last nodes of a linked list and returns a pointer to a structure, probably also a node of a linked list.

>struct cmdlist *commandlist=(struct cmdlist*)malloc(sizeof(struct cmdlist*));
This is a pointer variable called commandlist of type struct cmdlist. It is being allocated memory immediately upon creation.
(struct cmdlist*)malloc(sizeof(struct cmdlist*));
This is simply allocating memory big enough for a cmdlist pointer, but in C malloc doesn't have to be and shouldn't be cast.

>what is the dif between node* head
>and node *head
Programmer preference

-Prelude