C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
Locale Categories
                                             Up Contents Index Back
─────Run-Time Library───────────────────────────────────────────────────────
 
  Constant:  LC_ALL, LC_COLLATE, LC_CTYPE, LC_MAX, LC_MIN, LC_MONETARY,
             LC_NUMERIC, LC_TIME
 
  Include:   <locale.h>
 
  Context:   localeconv, setlocale, strcoll, strftime, strxfrm
 
  Summary:   Locale categories are manifest constants used by the
             localization routines to specify which portion of a
             program's locale information will be used. The "locale"
             refers to the locality (or country) for which certain
             aspects of your program can be customized. Locale-
             dependent areas include, for example, the formatting of
             dates or the display format for monetary values.
 
     The various locale categories, and the areas of a program that
     they affect, are listed below:
 
     Locale Category     Parts of Program Affected
 
     LC_ALL              All locale-specific behavior (all categories)
 
     LC_COLLATE          Behavior of strcoll and strxfrm functions
 
     LC_CTYPE            Behavior of the character-handling functions
                         (except for isdigit, isxdigit, mbstowcs, and
                         mbtowc, which are unaffected)
 
     LC_MAX              Same as LC_TIME
 
     LC_MIN              Same as LC_ALL
 
     LC_MONETARY         Monetary formatting information returned by
                         the localeconv function
 
     LC_NUMERIC          Decimal-point character for the formatted
                         output routines (for example, printf), the
                         data conversion routines, and the nonmonetary
                         formatting information returned by the
                         localeconv function
 
     LC_TIME             Behavior of the strftime function
                                    -♦-