Thread: assignment from incompatable pointer

i have this code

Code:

#include <stdio.h>
#include <stdlib.h>

typedef struct Node
{
    int data;
    struct node *next, *previous;
}Node;

typedef struct LinkedList
{
    struct Node *head, *tail;
}LinkedList;

void createhead(LinkedList *list);
int getdata(void);
Node *getmemory(void);
void appendlist(LinkedList *list);
void printlist(const LinkedList list);
void deletelist(LinkedList *list);

int main()
{
    LinkedList list;

    createhead(&list);
    appendlist(&list);
    appendlist(&list);
    appendlist(&list);
    printlist(list);
    deletelist(&list);

    return 0;
}

void createhead(LinkedList *list)
{
    Node *tmpnode = NULL;

    list->head = NULL;
    list->tail = NULL;

    tmpnode = getmemory();
    if (!tmpnode)
    {
        printf("error getting memory");
        exit(EXIT_FAILURE);
    }

    tmpnode->data = getdata();
    tmpnode->previous = NULL;
    tmpnode->next = NULL;
    list->head = tmpnode;
    list->tail = list->head;
}

int getdata(void)
{
    int data;

    printf("Please enter a number: ");
    scanf(" %d", &data);

    return data;
}

Node *getmemory(void)
{
    return malloc(sizeof(Node));
}

void appendlist(LinkedList *list)
{
    Node *tmpnode = NULL;

    tmpnode = getmemory();

    if (!tmpnode)
    {
        printf("error getting memory");
        return;
    }

    tmpnode->data = getdata();
    tmpnode->next = NULL;
    list->tail->next = tmpnode;
    list->tail = tmpnode;
    if (!list->head->next)
    {
        list->head->next = tmpnode;
    }
}

void printlist(const LinkedList list)
{
    int count = 1;
    Node *current = list.head;

    while (!current)
    {
        printf("node %d's data is %d", count, current->data);
        count++;
        current = current->next;
    }
}

void deletelist(LinkedList *list)
{
    int count = 1;
    Node *tmpnode = NULL;

    while (list->head)
    {
        tmpnode = list->head->next;
        free(list->head);
        printf("node %d freed", count);
        count++;
        list->head = tmpnode;
    }
}

lines 86 90 103 and 114 i get the warning yet i have done no different than what i have done previously here post 1 line 146 linked list sorting function causes segfault
has the wind changed direction again without me noticing??

opps that's the issue with sort names its easier to type the whole thing rather than select the correct auto complete. all works now. However i fail to see the mistake on line 87 and gcc doesn't complain.

next silly question is why didn't i get an error for line 7 when i did elsewhere for the same mistake;

i changed Node back to node to recreate the warnings
||=== Build: Debug in double linked lists (compiler: GNU GCC Compiler) ===|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘appendlist’:|
/home/ben/Documents/coding/double linked lists/main.c|93|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c|94|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c|98|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘printlist’:|
/home/ben/Documents/coding/double linked lists/main.c|111|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘deletelist’:|
/home/ben/Documents/coding/double linked lists/main.c|122|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘prependlist’:|
/home/ben/Documents/coding/double linked lists/main.c|141|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c|142|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘reverseprintlist’:|
/home/ben/Documents/coding/double linked lists/main.c|156|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
/home/ben/Documents/coding/double linked lists/main.c||In function ‘countnodes’:|
/home/ben/Documents/coding/double linked lists/main.c|168|warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]|
||=== Build finished: 0 error(s), 9 warning(s) (0 minute(s), 0 second(s)) ===|

so other than the os i am using and the project path and directory what did i miss out
coop