--> Christopher Butler wrote to All  <--
CB>If I've got two variables, stored as arrays of 3 bytes:
CB> 
CB>typedef byte DateType[3];
CB> 
CB>How do I test whether one is greater than the other?
Assuming the bytes are in order [0] being the most significant, and
each byte represents a number:
int DTcmp(const DateType *a, const DateType *b)
{
  /* Returns:
   *   1 if *a > *b
   *   0 if *a == *b
   *  -1 if *a < *b
   */
  int  i;
  char *x = (char *) a;
  char *y = (char *) b;
  for(i = 0; i < sizeof(DateType); i++, x++, y++)
  {
     if(*x > *y)  return 1;
     if(*x < *y)  return -1;
  }
  return 0;
}
PS: Why isn't this a class instead of a type?
X CMPQwk 1.42 1692 X"In headaches and in worry Vaguely life leaks away." - 
W.H. Auden
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