1-linked_list.c

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

/**
* main: Implenting a linked list.
*
* Return: no return.
*/

typedef struct node
{
    int number;
    struct node*next;
}
node;

int main(void)
{
    //List of size NULL
    node*list=NULL;
    //Add number to list
    node*n=malloc(sizeof(node));

    if(n==NULL)
    {
        return 1;
    }
    n->number=1;
    n->next=NULL;

    //update list to point new node
    list=n;

    //Add a number to list
    n=malloc(sizeof(node));

    if(n==NULL)
    {
        free(list);
        return 1;
    }
    n->number=2;
    n->next=NULL;
    list->next=n;

    //Add number to list
    n=malloc(sizeof(node));
    if(n==NULL)
    {
        free(list->next);
        free(list);
        return 1;
    }
    n->number=3;
    n->next=NULL;
    list->next->next=n;

    //print numbers
    for(node*tmp=list;tmp!=NULL;tmp=tmp->next)
    {
        printf("%i\n",tmp->number);
    }
    //free list
    while(list!=NULL)
    {
        node*tmp=list->next;
        free(list);
        list=tmp;
    }
}