/*
 ============================================================================
 Name        : chained_list.c
 Author      : Lukas Heiligenbrunner
 Version     : 0.1.5 BETA
 Copyright   : My copyright
 Description : C programme to manage chained lists
 ============================================================================
 */

#ifndef CHAINED_FUNCTIONS_H
#define CHAINED_FUNCTIONS_H


typedef struct messdaten
{
  struct messdaten * next;
  char sensorname[10];
  float messwert;
}messdaten;


/* functon to insert the first element
 * in: firstelem; newelement
 * out: newelement
 * changed: firstelem
 */
messdaten* insertFirst(messdaten* firstelem, messdaten* newelement);

/* functon to insert the last element
 * in: firstelem; newelement
 * out: newelement (why!?!)
 * changed: lastelement
 */
messdaten* insertLast(messdaten* firstelem, messdaten* newelement);

/* functon to insert the element on a specific position
 * in: firstelem; newelement; position
 * out: newelement
 * changed: one more item in chained list...
 */
messdaten* insertPos(messdaten* firstelem, messdaten* newelement, int pos);

/* functon to delete the first element
 * in: firstelem;
 * out: newelement
 * changed: firstelem
 */
messdaten* deleteFirst(messdaten* firstelem);

/* functon to delete the last element
 * in: firstelem
 * out: newelement
 * changed: lastelement
 */
messdaten* deleteLast(messdaten* firstelem);

/* functon to delete the element of a specific element
 * in: firstelem; newelement
 * out: newelement
 * changed: firstelem
 */
messdaten* deletePos(messdaten* firstelem, int pos);

/* functon to delete all the list elements
 * in: firstelem
 * out: newelement
 * changed: the whole list XD
 */
messdaten* deleteAll(messdaten* firstelem);


#endif