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Creating Linked List

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ansh11

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Hello

I want to make single linked list

When I compile code GCC compiler gives many warning


Code C - [expand]
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#include <stdio.h>
#include <stdlib.h>
 
struct Node{
  int N;
  struct Node *next;
};
 
struct Node *addNode(struct node *next , int n ) {
    struct Node *new = malloc(sizeof(*new));
    new->N = n;
    new->next = next;
    return new;
}
 
int main ( ) {
    struct Node *head = NULL;
    head = addNode(1, head);
    
    return 0;
}



warning: 'struct node' declared inside parameter list will not be visible outside of this definition or declaration
struct Node *addNode(struct node *next , int n ) {
^~~~
: In function 'addNode':
warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
new->next = next;
^
In function 'main':
warning: passing argument 1 of 'addNode' makes pointer from integer without a cast [-Wint-conversion]
head = addNode(1, head);
^
note: expected 'struct node *' but argument is of type 'int'
struct Node *addNode(struct node *next , int n ) {
^~~~~~~
warning: passing argument 2 of 'addNode' makes integer from pointer without a cast [-Wint-conversion]
head = addNode(1, head);
^~~~
note: expected 'int' but argument is of type 'struct Node *'
struct Node *addNode(struct node *next , int n ) {
^~~~~~~
How to make linked list
 

eziggurat

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I think you need to understand c before attempting writing a linked list. You also need to understand the compiler warnings and errors. By looking at struct node, where is that declared? Also you returning a struct Node, what is the difference between the capitalize and lower case structs? Have you tried typedef?

I don't know your code but if you going to attempt to write a linked list there are plenty of examples online or in standard c book.
 

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