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3.1.1.7 Variable Size Data Array Unsigned Library

• Plain search routine

  int x1f4_find_??fine
      (void *, unsigned, unsigned, void **)
  

  looks for some $1 associative array item matching the integral $2 key. The key is compared with some integral record in the data of examined associative array element, record to be found $3 bytes after to the start of element data. Upon success, the start address of the found associative array element data is stored at $4.

      x1f4_find_??fine(a1, a2, a3, a4)
  

  is equivalent with:

      x1f4_find_??line(a1, &a2, a3, compare, a4)
  

  where compare is:

      int
      compare(void *looked_for_key, void *associative_array_stored_key)
      {
          int e;
          unsigned b, k;
  
          b = *(unsigned *) associative_array_stored_key;
          k = *(unsigned *) looked_for_key;
  
          if (k < b) {
              e = -1;
          } else {
              if (b < k) {
                  e = 1;
              } else {
                  e = 0;
              }
          }
  
          return e;
      }
  

  returns 0 if no match was found, non zero otherwise