facets(3C++) - facets(3C++)
Standard C++ Library Copyright 1998, Rogue Wave Software, Inc.
NAMEfacets
- A family of classes used to encapsulate categories of locale func‐
tionality.
DESCRIPTION
The Standard C++ Localization library includes a locale interface that
contains a collection of diverse facets. Each facet has localization
facilities for some specific area, such as character classification or
numeric formatting. Each facet also falls into one or more broad cate‐
gories. These categories are defined in the locale class, and the stan‐
dard facets fit into these categories as follows.
CATEGORY FACETS
collate collate, collate_byname
ctype ctype, codecvt, ctype_byname, codecvt_byname
monetary moneypunct, moneypunct_byname, money_put,
money_get
numeric numpunct, numpunct_byname, num_put, num_get
time time_put, time_put_byname, time_get,
time_get_byname
messages messages, messages_byname
A facet must satisfy two properties. First, it must be derived from the
base class locale::facet, either directly or indirectly (for example,
facet -> ctype<char> -> my_ctype). Second, it must contain a member of
type locale::id. This ensures that the locale class can manage its col‐
lection of facets properly.
SEE ALSO
locale, specific facet reference sections
Rogue Wave Software 02 Apr 1998 facets(3C++)
