bdlat::NullableValueUtil Struct Reference

#include <bdlat_nullablevalueutil.h>

Static Public Member Functions
template<class TYPE , class ACCESSOR >
static int	accessValueByCategory (const TYPE &object, ACCESSOR &accessor)
template<class TYPE , class MANIPULATOR >
static int	manipulateValueByCategory (TYPE *object, MANIPULATOR &manipulator)

Detailed Description

This struct provides a namespace for a suite of function templates providing non-primitive operations on "nullable value" types.

Member Function Documentation

accessValueByCategory()

template<class TYPE , class ACCESSOR >

int bdlat::NullableValueUtil::accessValueByCategory ( const TYPE &  object, ACCESSOR &  accessor  )

inlinestatic

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()

template<class TYPE , class MANIPULATOR >

int bdlat::NullableValueUtil::manipulateValueByCategory ( TYPE *  object, MANIPULATOR &  manipulator  )

inlinestatic

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.

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The documentation for this struct was generated from the following file:

• bdlat_nullablevalueutil.h