Locale Categories
A locale category is the specification of one
of the elements that make up the cultural environment, or locale,
in which a program runs.
IBM C and C++ Compilers supports the following
locale categories:
- LC_CTYPE defines character attributes
- LC_COLLATE establishes relative order of character
collating elements
- LC_MONETARY defines the rules and symbols to format
monetary quantities
- LC_NUMERIC defines the rules and symbols to format
non-monetary numeric data
- LC_TIME specifies how to format date and time data
- LC_MESSAGES establishes the format and values of positive
and negative responses
- LC_TOD controls the start and end of daylight savings
time and the time zone
Note: The LC_TOD locale category is an IBM extension. The
locales that ship with IBM C and C++ Compilers do not have
LC_TOD specified. To specify time zone and daylight
savings time information, you must either add LC_TOD and
rebuild the locale or use the tzset function.
- LC_SYNTAX defines variant characters from the portable
character set
Note: The LC_SYNTAX locale category is an IBM extension.
IBM C and C++ Compilers' support of
internationalization is based on the IEEE POSIX P1003.2 and X/Open
Portability Guide standards for global locales and coded
character set conversion, with the following exceptions:
- The grouping arguments in the LC_NUMERIC
and LC_MONETARY locale categories must be strings, not
sets of integers.
- The use of the ellipsis (...) in the
LC_COLLATE locale category is limited.
The ANSI standard C++ Localization library
supports the following standard locale categories:
- ctype
- collate
- monetary
- numeric
- time
- messages

Internationalization
Localization
and Locales

Make your
Program International
Customize a
Locale

Locale Source Files
LC environment
variables