why i get this error..

[transgalactic2]

in the end i want elt to point on some address
why i get
c(28) : error C2223: left of '->next' must point to struct/union
but when i change it to

(*p)->next->next;

it works fine,why i need these cols

#include <stdio.h>
#include <stdlib.h>
typedef struct node {
    int value;
    struct node *next;
}Node;

void what1(Node ** p,int num);
int main()
{
   Node *p;
   p=(Node *)malloc(sizeof(Node));
   p->value=1;
   p->next=(Node *)malloc(sizeof(Node));
   p->next->value=2;
   what1(&p,0);
   free(p);
    return 0;
}

void what1(Node ** p,int num)
{
   Node *elt;
   elt=(Node*)malloc(sizeof(Node));
   elt->next=*p;
   elt->value=num;
    *p=elt;
	elt=*p->next->next;
}

[tabstop]

Because, as the error message pointed out, p does not point to a struct or a union. It points to a pointer.

[itCbitC]

Why do you think you need the dereferencing operator "*" in the first place?

[transgalactic2]

so why the cols makes it wright?
works:
elt=(*p)->next->next;


doesnt work

elt=*p->next->next;

[vart]

http://www.infis.univ.trieste.it/C/O...ction3_15.html

[itCbitC]

so why the cols makes it wright?
works:
elt=(*p)->next->next;


doesnt work

elt=*p->next->next;

read about operator precedence and binding first!