Return true if the specified lhs nullable object is ordered before the specified rhs or lhs and rhs have the same value, and false otherwise. (See operator< and operator==.)
Declared in <bdlb_nullablevalue.h>
template<
class LHS_TYPE,
class RHS_TYPE>
bool
operator<=(
NullableValue<LHS_TYPE> const& lhs,
RHS_TYPE const& rhs)
requires (!NullableValue_DerivedFromOptional<RHS_TYPE>) &&
requires { { *lhs <= rhs } -> NullableValue_ConvertibleToBool; };