This struct should be specialized for third-party types that need to expose "nullable" behavior. See the component-level documentation for further information.
Declared in <bdlat_nullablevaluefunctions.h>
template<class TYPE>
struct IsNullableValue
: bsl::false_type| Name | Description |
|---|---|
bsl::false_type | Metafunction representing the boolean constant false. |
| Name |
|---|
IsNullableValue<bdlar::NullableValueConstRef> |
IsNullableValue<bdlar::NullableValueRef> |
IsNullableValue<bdlb::NullableAllocatedValue<TYPE>> |
IsNullableValue<bdlb::NullableValue<TYPE>> |
| Name | Description |
|---|---|
IsNullable | Meta-function indicating whether the specified t_TYPE is a nullable value type. |