Subclause [localization] describes components that C++ programs may use to
encapsulate (and therefore be more portable when confronting)
cultural differences.
The locale facility includes
internationalization support for character classification and string collation,
numeric, monetary, and date/time formatting and parsing, and
message retrieval.
The following subclauses describe components for
locales themselves,
the standard facets, and
facilities from the C library,
as summarized in Table 85.