usaa20/cv5/a_train.c

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


/*int main(void){
    printf("Zadajte zoznam cieľových staníc a počet cestujúcich.\n");
    printf("Zoznam zakončite prázdnym riadkom.\n");

    add_car;
    return 0;
}*/

struct car* add_car(struct car* first,const char* target) {
    struct car* newcar = calloc(1,sizeof(struct car));
    struct car* this=first;
    if(this==NULL){
        return newcar;
    }
    while(this->next!=NULL){
            this=this->next;
            this->next = newcar;
    }
    strcpy(newcar->value, target);
    return first;
}

void print_train(struct car* first) {
struct car* this=first;
    while(this->next!=NULL){
            this=this->next;
            printf(this->value);
    }
}

void cancel_train(struct car* first) {
}

struct car* clear_train(struct car* first, const char* target) {
    struct car* prev = first;
// Už sme si istí, že  prev a prev->next nie sú NULL
//    while (prev->next->next != NULL){
  //  prev = prev->next;
    //}
    //struct car* third = prev->next->next;
    //free(prev->next);
    //prev->next = third;
    //return first;

    return NULL;
}