BloombergLP::bdlar::NullableValueConstRef

Type‐erased const reference to an object in the bdlat nullable‐value type category.

Synopsis

Declared in <bdlar_nullablevalueref.h>

class NullableValueConstRef;

Type Aliases

Name

Description

CategoryTag

Tag type indicating the nullable‐value type category.

Member Functions

Name

Description

NullableValueConstRef [constructor]

Constructors

accessValue

Invoke the specified accessor on the referred non‐null value. The supplied accessor must be a callable type that can be called as if it had the following signature: ` int accessor(const VALUE& refOrValue); ` Return the value from the invocation of accessor. The behavior is undefined if the referred object is null.

isNull

Return true if the referred object contains a null value, and false otherwise.

objectAddress

Return a pointer to the wrapped object.

valueCategory

Return the value type category.

vtable

Return a pointer to the vtable.

xsdName

Return the bdlat_TypeName::xsdName value for the underlying object.