The template class describes an object that can serve as a locale facet to retrieve localized messages from a catalog of internationalized messages for a given locale.
Currently, while the messages class is implemented, there are no messages.
The type used within a program to encode characters in a locale.
As with any locale facet, the static object ID has an initial stored value of zero. The first attempt to access its stored value stores a unique positive value in id.
This facet basically opens a catalog of messages defined in the base class messages_base, retrieves the information required, and closes the catalog.