Given a type
T, let
a,
b, and
c be
lvalues of type
const remove_reference_t<T>.T models
totally_ordered only if
Exactly one of
bool(a < b),
bool(a > b), or
bool(a == b) is
true.If
bool(a < b) and
bool(b < c), then
bool(a < c).bool(a <= b) == !bool(b < a). bool(a >= b) == !bool(a < b).
Given types
T and
U,
let
t be an lvalue of type
const remove_reference_t<T>,
u be an lvalue of type
const remove_reference_t<U>,
and
C be:
common_reference_t<const remove_reference_t<T>&, const remove_reference_t<U>&>
T and
U model
totally_ordered_with<T, U> only if
- bool(t < u) == bool(C(t) < C(u)).
- bool(t > u) == bool(C(t) > C(u)).
- bool(t <= u) == bool(C(t) <= C(u)).
- bool(t >= u) == bool(C(t) >= C(u)).
- bool(u < t) == bool(C(u) < C(t)).
- bool(u > t) == bool(C(u) > C(t)).
- bool(u <= t) == bool(C(u) <= C(t)).
- bool(u >= t) == bool(C(u) >= C(t)).