Error 'a value of type “X *” cannot be assigned to an entity of type “X *”' when using typedef struct

Question

Here is the struct I am using for the nodes...

typedef struct
{
    struct Node* next;
    struct Node* previous;
    void* data;
} Node;

and h

Answer 1

Similar to Deepu's answer, but a version that will let your code compile. Change your struct to the following:

typedef struct Node // <-- add "Node"
{
    struct Node* next;
    struct Node* previous;
    void* data;
}Node; // <-- Optional

void linkNodes(Node* first, Node* second)
{    
    if (first != NULL)
        first->next = second;

    if (second != NULL)
        second->previous = first;
}