Sigh, don't have an SO account but if I did, I would suggest this code which I call randsort --

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

   int
   main(int argc, char *argv[]) {
       int i, ndx;
       double my_numbers[10];
       double sorted_numbers[10];
       uint16_t picked;

       for (i = 1; i < argc; i++) {
           my_numbers[i-1] = atof(argv[i]);
       }

       while (1) {
           picked = 0;
           ndx = 0;
           /* sort the numbers */
           while (picked != 0x3ff) {
               i = (rand() / 100) %  10;
               if ((picked & (1 << i)) == 0) {
                   picked |= (1 << i);
                   sorted_numbers[ndx++] = my_numbers[i];
               }
           }

           /* verify they sorted correctly */
           for (i = 8; i >= 0; i--) {
               if (( i == -1) || (sorted_numbers[i] > sorted_numbers[i+1])) {
                   break;
               }
           }
           if (i == -1) {
               printf(" Sorted: \n");
               for (i = 0; i < 10; i++) {
                   printf(" %d: %f\n", i, sorted_numbers[i]);
               }
               exit(0);
           }
       }
   }