beman::optional::operator<=

Orders an optional before or equal to a value.

Synopsis

Declared in <beman/optional/optional.hpp>

template<
    typename T,
    typename U>
constexpr
bool
operator<=(
    optional<T> const& lhs,
    U const& rhs)
requires (!detail::is_optional<U>) && detail::optional_le_rel<T, U>;

Return Value

true if lhs is disengaged, or its contained value does not order after rhs.

Parameters

NameDescription
lhsThe optional operand.
rhsThe value operand.