keen/compare

Source
This is a standard module and does not need to be explicitly imported.
comparison enum
less
equal
greater

Result of comparison.

If a <=> b is equal, then any function on a should return ths same result as a on b.

equal[t] spec
== bool(a t, b t)
compare[t] spec
<=> comparison(a t, b t)
When defined for mutable values, this should compare their content without regard to mutablility; so it may consider values equal that may not be equal in the future.
- comparison(a comparison)
Opposite comparison
!=[t] bool(a t, b t) t equal
Opposite of a == b
<[t] bool(a t, b t) t compare
True iff (a <=> b) == comparison.
<=[t] bool(a t, b t) t compare
True iff (a <=> b) != comparison.
>[t] bool(a t, b t) t compare
True iff (a <=> b) == comparison.
>=[t] bool(a t, b t) t compare
True iff (a <=> b) != comparison.
min[t] t(a t, b t) t compare
Returns the lesser argument. Returns b if they are equal.
min[t] t(a t, b t, c t) t compare
max[t] t(a t, b t) t compare
Returns the greater argument. Returns b if they are equal.
max[t] t(a t, b t, c t) t compare
compare-reverse[t] record
inner t
Wraps a value and reverses comparison (so less becomes greater and vice versa)