Reputation: 295
this is for a project for class. (C language)
I am having trouble with the first function
that I'll need to implement. It's a load function where I take an input filename, open up a file given by user at runtime, and read it into a linked list format from a file with an integer on each line.
I am stuck with how to create the linked list
so that they are all actually linked, without the same node in the list being overwritten each time
.
This is what I have so far, which I know is incorrect.
#include"sortingheaders.h"
#include <stdio.h>
#include<stdlib.h>
#include<time.h>
///////////////////////////////
Node* List_Create(Node * ln)
{
if(ln==NULL)
{
ln = malloc(sizeof(Node));
ln->value = 0;
ln->next = NULL;
}
return ln;
}
/////////////////////////////////////////////////////////////////////////////
Node* Load_File(char *Filename)
{
//Open file
FILE* fptr = fopen(Filename, "r");
Node* ln=NULL;
Node* temp=NULL;
long int *x = 0;
//Validity Check, return 0 if unsuccesful
if(fptr ==NULL)
{printf("File didnt open!"); return 0;}
ln= List_Create(ln);
while(!feof(fptr))
{
fscanf(fptr,"%li",x);
ln->value = *x;
ln->next = List_Create(temp);
return(ln);
}
Upvotes: 0
Views: 1444