/*
 * File:   main.c
 * Author: hkeijone
 *
 * Created on 12. syyskuuta 2011, 12:41
 */

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


/*
 *
 */

void print_doubles(double* array, int len) {
    for (int i = 0; i < len; i++) {
        printf("%lf " , array[i]);
    }
            printf("%s \n" , "");

}

void swap(void* a, void* b, size_t elem_size) {
    char* ca = a;
    char* cb = b;
    for (size_t i = 0; i < elem_size; i++) {
        char temp = ca[i];
        ca[i] = cb[i];
        cb[i] = temp;
    }
    return;
}

void shuffle(void* array, int len, size_t elem_size) {

    int moduloija;
    int arvottu;
    int kerroin = elem_size/sizeof(char);
    printf("%d\n", kerroin);
     char *arr = (char*)array;

    int j;
    for ( j = 0; j < len; j++) {
        moduloija = len - j;
        srand(time(NULL));

        arvottu = rand() % moduloija;
        swap(&arr[j*kerroin*sizeof(char)], &arr[arvottu*kerroin*sizeof(char)], elem_size);
    }

    array = array;
    elem_size = elem_size;




   // printf(" %lf\n", arr[]);




}




//    int i;
/*
    for (size_t i = 0; i < elem_size; i++){
        printf("%lf", arr[i]);
    }
*/



int main() {

    double nums[5] = { 1.5, 3.5, 5.5, 7.5, 9.5 };
shuffle(nums, 5, sizeof(double));
print_doubles(nums, 5); // implemented in a previous task

    return (EXIT_SUCCESS);
}