Types of package

Describes the three types of package descriptors.

Three types of package are available:

• a packaged modifiable buffer descriptor

• a packaged non-modifiable pointer descriptor

• a packaged modifiable pointer descriptor

Packaged modifiable buffer descriptor

This is an object of type TPckgBuf and is a modifiable buffer descriptor. The class is templated; the template parameter defines the type of object that this descriptor can contain.

For example, a package descriptor of type TPckgBuf<TExample> is a modifiable buffer descriptor that only contains objects of type TExample.

The package class also allows functions to be called on the contained class.

Packaged non-modifiable pointer descriptor

This is an object of type TPckgC and is a non-modifiable pointer descriptor. The class is templated; the template parameter defines the type of object that this descriptor can represent.

For example, a package descriptor of type TPckgC<TExample> is a non- modifiable pointer descriptor that only represents objects of type TExample.

The package class also allows functions to be called on the contained class.

Packaged modifiable pointer descriptor

This is an object of type TPckg and is a modifiable pointer descriptor. The class is templated; the template parameter defines the type of object that this descriptor can represent.

For example, a package descriptor of type TPckg<TExample> is a modifiable pointer descriptor that only represents objects of type TExample.

The package class also allows functions to be called on the contained class.