Creating Locales
You can construct an RWULocale instance from a character string describing the full name of the locale, including language, country, and variant codes. (See Named Locales.) For example:
 
RWULocale loc = RWULocale("es_ES_TRADITIONAL");
Alternatively, you can construct an RWULocale from separate language, country, and variant character strings. Use a null pointer to indicate an absent part. The default variant is the empty string. For example:
 
RWULocale loc = RWULocale("en", "US");