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NAME

       locale.h - category macros

SYNOPSIS

       #include <locale.h>

DESCRIPTION

       Some  of the functionality described on this reference page extends the
       ISO C standard. Any conflict between the  requirements  described  here
       and   the   ISO C   standard   is   unintentional.    This   volume  of
       IEEE Std 1003.1-2001 defers to the ISO C standard.

       The <locale.h> header shall provide a definition for  lconv  structure,
       which   shall   include  at  least  the  following  members.  (See  the
       definitions of LC_MONETARY in LC_MONETARY and LC_NUMERIC .)

              char    *currency_symbol
              char    *decimal_point
              char     frac_digits
              char    *grouping
              char    *int_curr_symbol
              char     int_frac_digits
              char     int_n_cs_precedes
              char     int_n_sep_by_space
              char     int_n_sign_posn
              char     int_p_cs_precedes
              char     int_p_sep_by_space
              char     int_p_sign_posn
              char    *mon_decimal_point
              char    *mon_grouping
              char    *mon_thousands_sep
              char    *negative_sign
              char     n_cs_precedes
              char     n_sep_by_space
              char     n_sign_posn
              char    *positive_sign
              char     p_cs_precedes
              char     p_sep_by_space
              char     p_sign_posn
              char    *thousands_sep

       The <locale.h> header shall define NULL (as defined in <stddef.h> ) and
       at least the following as macros:

       LC_ALL
       LC_COLLATE
       LC_CTYPE

       LC_MESSAGES

       LC_MONETARY
       LC_NUMERIC
       LC_TIME

       which shall expand to distinct integer constant expressions, for use as
       the first argument to the setlocale() function.

       Additional macro definitions, beginning with the characters LC_ and  an
       uppercase letter, may also be given here.

       The following shall be declared as functions and may also be defined as
       macros. Function prototypes shall be provided.

              struct  lconv *localeconv (void);
              char   *setlocale(int, const char *);

       The following sections are informative.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       The System Interfaces  volume  of  IEEE Std 1003.1-2001,  localeconv(),
       setlocale(), Environment Variables

COPYRIGHT

       Portions  of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained  online
       at http://www.opengroup.org/unix/online.html .