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

typedef struct litem_t{
    char * orderno;
	char * name;
	float price;
	int count;
} litem;
 
typedef struct llist_t{
  struct litem_t *item;
  struct llist_t *next;
} llist;



llist* addItem(llist* alist, char* orderno, char* name, float price, int count, float sum){

 if (alist==NULL){ //neue liste anlegen!
	 alist=(llist*) calloc(1,sizeof(llist));
	 alist->next=NULL;
 }else{
	 llist* newlist=(llist*)calloc(1,sizeof(llist));
	 newlist->next=alist;
	 alist=newlist;
 }
 alist->item=(litem*)calloc(1,sizeof(litem));
 alist->item->orderno=strdup(orderno);
 alist->item->name=strdup(name);
 alist->item->price=price;
 alist->item->count=count;
 if ( price*count != sum ){
	 printf("error: price * count != sum \n");
 }

 return alist;
}
 

void dumpList(llist* alist){

	while (alist!=NULL){
		printf("%10s %40s %8.2f %03i %8.2f\n",
				alist->item->orderno, 
				alist->item->name, 
				alist->item->price,
				alist->item->count, 
				alist->item->count * alist->item->price);
		alist=alist->next;
	}
}


int main(int argc, char** argv){
 
 llist *alist; 
 alist= addItem(NULL, "UT 2042 C","40 MHz-Digital-Speicher-Oszilloskop",349.00, 1, 349.00);
 alist= addItem(alist, "AGF 2 SW","Hirschmann-Abgreifklemme 4mm schwarz",5.10,1, 5.10);

 dumpList(alist);

}