Return whether rhs is null.
Declared in <bdlb_nullablevalueref.h>
template<class TYPE>
bool
operator==(
bsl::nullopt_t const& lhs,
ConstNullableValueRef<TYPE> const& rhs) noexcept;Return true if the specified rhs is null, and false otherwise.
true if the specified rhs is null, and false otherwise
| Name | Description |
|---|---|
| lhs | nullopt sentinel |
| rhs | nullable reference to test |