Hi,

I have declared an exten struct 'linked_list' in a header file, this header file is included in the c file, and the necessary elements from the h file are declared. but when I try to access the members of an instance of the struct from the h file, there are errors stating that the struct has no member of that name

the code is as follows

h file:
Code:
typedef struct linked_list {
thread_t thread;
linked_list *next;
int isNull;
}linked_list;

extern linked_list *threads_head;
extern linked_list *threads_tail;

int totalSize = 0;
int hasHead = 0;
and some of the code for the c file (not all included,as same error thrown throughout the file):
Code:
#include <stdio.h>
#include "context.h"
#include "sched.h"
#include "thread.h"
#include <stdlib.h>


thread_t newThread;
linked_list threads;
linked_list *threads_head;
linked_list *threads_tail;
int totalSize;


context_t context_1;
context_t context_2;


void remove_thread(){
	int pos;
	pos = newThread.ID;
	linked_list x, temp;

	temp = *threads_head;
	for(int i=0;i<totalSize;i++)
	{
		if(i==pos){
			x=*temp.next;
			temp.next=*temp.next.next;
			free(&x);
		}
	temp=*temp.next;
	}
}

void add_thread(thread_t* newThread){
if (totalSize==0){
 		threads_head->thread = &newThread;
		threads_head->next = &threads_tail; 
		threads_head->isNull = 1;
		totalSize++;
		
	} else{
		//threads_tail->next = *newThread;
		linked_list newNullElement;
		newNullElement.isNull =0;

		linked_list newElement;
		newElement.thread = newThread;
		newElement.next = newNullElement;
		newElement.isNull = 1;
		
		threads_tail->next = newElement; //thread tail = new linked list

		totalSize++;
		threads_tail = &newElement;

	}
	
}
Im probably making a silly little mistake, but I cant for the life of me figure it out!

I'd be super grateful for any help

Fiona