Return true if the specified lhs is ordered before the specified rhs nullable object 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<=(
LHS_TYPE const& lhs,
NullableValue<RHS_TYPE> const& rhs)
requires (!NullableValue_DerivedFromOptional<LHS_TYPE>) &&
requires { { lhs <= *rhs } -> NullableValue_ConvertibleToBool; };