Comparison (total ordering) between two elements, that returns an int.

Polymorphic "magic" comparison.

Opposite order.

Returns true iff the two comparison results are the same.

c1 <?> (ord, x, y) returns the same as c1 if c1 is not 0; otherwise it uses ord to compare the two values x and y, of type 'a.

Example:

CCInt.compare 1 3
  <?> (String.compare, "a", "b")
  <?> (CCBool.compare, true, false)

Same example, using only CCOrd::

CCOrd.(int 1 3
    <?> (string, "a", "b")
    <?> (bool, true, false))

Comparison of optional values. None is smaller than any Some _.

• since 0.15

Lexicographic combination on lists.

map f ord is the comparison function that, given objects x and y, projects x and y using f (e.g. using a record field) and then compares those projections with ord. Example: map fst CCInt.compare compares values of type (int * 'a) by their first component.

Infix equivalent of map.