BloombergLP::bdlat::NullableValueUtil

Synopsis

Declared in <bdlat_nullablevalueutil.h>

struct NullableValueUtil;

Static Member Functions

Name Description

accessValueByCategory Invoke the specified accessor on the non-modifiable value stored in the specified "nullable" object and on a prvalue of the category tag type for the dynamic category of the value. See {bdlat_typecategory|Category Tags and Enumerators} for documentation about category tags. Return the value from the invocation of accessor. The accessor must be an accessor functor. See {bdlat_typecategory|ACCESSOR Functors} for the requirements on accessor. The behavior is undefined if object contains a null value.

manipulateValueByCategory Invoke the specified manipulator on the address of the value stored in the specified "nullable" object and on a prvalue of the category tag type for the dynamic category of the value. See {bdlat_typecategory|Category Tags and Enumerators} for documentation about category tags. Return the value from the invocation of manipulator. The manipulator must be a manipulator functor. See {bdlat_typecategory|MANIPULATOR Functors} for the requirements on manipulator. The behavior is undefined if object contains a null value.

Name	Description
`accessValueByCategory`	Invoke the specified `accessor` on the non-modifiable value stored in the specified "nullable" `object` and on a prvalue of the category tag type for the dynamic category of the value. See {`bdlat_typecategory`\|Category Tags and Enumerators} for documentation about category tags. Return the value from the invocation of `accessor`. The `accessor` must be an accessor functor. See {`bdlat_typecategory`\|`ACCESSOR` Functors} for the requirements on `accessor`. The behavior is undefined if `object` contains a null value.
`manipulateValueByCategory`	Invoke the specified `manipulator` on the address of the value stored in the specified "nullable" `object` and on a prvalue of the category tag type for the dynamic category of the value. See {`bdlat_typecategory`\|Category Tags and Enumerators} for documentation about category tags. Return the value from the invocation of `manipulator`. The `manipulator` must be a manipulator functor. See {`bdlat_typecategory`\|`MANIPULATOR` Functors} for the requirements on `manipulator`. The behavior is undefined if `object` contains a null value.