Return true if the specified value is null, and false otherwise.
Declared in <bdlb_nullablevalue.h>
template<class TYPE>
constexpr
bool
operator==(
NullableValue<TYPE> const& value,
bsl::nullopt_t const& nullopt) noexcept;true if the specified value is null, and false otherwise
| Name | Description |
|---|---|
| value | nullable object to compare |
| nullopt | disengaged-optional tag |