Make ptr

[MethodMan]

Node *MakeNode(StackEntry item)  
{
  Node *nptr;
  if( (nptr = malloc ( sizeof nptr) ) != NULL)     
        {
        nptr = item;     
        return item;
        }
        else
                return NULL;

}

warning: assignment makes pointer from integer without a cast
warning: assignment makes pointer from integer without a cast
warning: return makes pointer from integer without a cast

I am getting these errors, can anyone tell me why, and make the corrections? Thanks

[bigtamscot]

Node *MakeNode(StackEntry item)  
{
  Node *nptr;
  if( (nptr = malloc ( sizeof nptr) ) != NULL)     
        {
        nptr = item;     
        return nptr;
        }
        else
                return NULL;

}

Or

Node *MakeNode(StackEntry *item)  
{
  Node *nptr;
  if( (nptr = malloc ( sizeof nptr) ) != NULL)     
        {
        nptr = item;     
        return item;
        }
        else
                return NULL;

}

[MethodMan]

I made the correction with the first correction of the code, and I get the same error

[Nutshell]

You should use malloc to make space for the size of the Node structure ?

[Shiro]

This is a very strange function. The function receives the variable item, does nothing with it and returns item.

What type is StackEntry? I think it is not the same type as Node, so you can't return item.

Since your function should returns Node *, I assume you want nptr being returned. You can't assign nptr and item, I think that you want something like:

nptr->item = item;

That is, I assume Node is a structure with a member of type StackEntry and you want that member having the value of item.