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locale.h

/* Copyright (C) 1991,92,95-99,2000,01,02 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/*
 *    ISO C99 Standard: 7.11 Localization <locale.h>
 */

#ifndef     _LOCALE_H
#define     _LOCALE_H   1

#include <features.h>

#define __need_NULL
#include <stddef.h>
#include <bits/locale.h>

__BEGIN_DECLS

/* These are the possibilities for the first argument to setlocale.
   The code assumes that the lowest LC_* symbol has the value zero.  */
#define LC_CTYPE          __LC_CTYPE
#define LC_NUMERIC        __LC_NUMERIC
#define LC_TIME           __LC_TIME
#define LC_COLLATE        __LC_COLLATE
#define LC_MONETARY       __LC_MONETARY
#define LC_MESSAGES       __LC_MESSAGES
#define     LC_ALL              __LC_ALL
#define LC_PAPER    __LC_PAPER
#define LC_NAME           __LC_NAME
#define LC_ADDRESS        __LC_ADDRESS
#define LC_TELEPHONE      __LC_TELEPHONE
#define LC_MEASUREMENT    __LC_MEASUREMENT
#define LC_IDENTIFICATION __LC_IDENTIFICATION


/* Structure giving information about numeric and monetary notation.  */
struct lconv
{
  /* Numeric (non-monetary) information.  */

  char *decimal_point;        /* Decimal point character.  */
  char *thousands_sep;        /* Thousands separator.  */
  /* Each element is the number of digits in each group;
     elements with higher indices are farther left.
     An element with value CHAR_MAX means that no further grouping is done.
     An element with value 0 means that the previous element is used
     for all groups farther left.  */
  char *grouping;

  /* Monetary information.  */

  /* First three chars are a currency symbol from ISO 4217.
     Fourth char is the separator.  Fifth char is '\0'.  */
  char *int_curr_symbol;
  char *currency_symbol;      /* Local currency symbol.  */
  char *mon_decimal_point;    /* Decimal point character.  */
  char *mon_thousands_sep;    /* Thousands separator.  */
  char *mon_grouping;         /* Like `grouping' element (above).  */
  char *positive_sign;        /* Sign for positive values.  */
  char *negative_sign;        /* Sign for negative values.  */
  char int_frac_digits;       /* Int'l fractional digits.  */
  char frac_digits;           /* Local fractional digits.  */
  /* 1 if currency_symbol precedes a positive value, 0 if succeeds.  */
  char p_cs_precedes;
  /* 1 iff a space separates currency_symbol from a positive value.  */
  char p_sep_by_space;
  /* 1 if currency_symbol precedes a negative value, 0 if succeeds.  */
  char n_cs_precedes;
  /* 1 iff a space separates currency_symbol from a negative value.  */
  char n_sep_by_space;
  /* Positive and negative sign positions:
     0 Parentheses surround the quantity and currency_symbol.
     1 The sign string precedes the quantity and currency_symbol.
     2 The sign string follows the quantity and currency_symbol.
     3 The sign string immediately precedes the currency_symbol.
     4 The sign string immediately follows the currency_symbol.  */
  char p_sign_posn;
  char n_sign_posn;
#ifdef __USE_ISOC99
  /* 1 if int_curr_symbol precedes a positive value, 0 if succeeds.  */
  char int_p_cs_precedes;
  /* 1 iff a space separates int_curr_symbol from a positive value.  */
  char int_p_sep_by_space;
  /* 1 if int_curr_symbol precedes a negative value, 0 if succeeds.  */
  char int_n_cs_precedes;
  /* 1 iff a space separates int_curr_symbol from a negative value.  */
  char int_n_sep_by_space;
  /* Positive and negative sign positions:
     0 Parentheses surround the quantity and int_curr_symbol.
     1 The sign string precedes the quantity and int_curr_symbol.
     2 The sign string follows the quantity and int_curr_symbol.
     3 The sign string immediately precedes the int_curr_symbol.
     4 The sign string immediately follows the int_curr_symbol.  */
  char int_p_sign_posn;
  char int_n_sign_posn;
#else
  char __int_p_cs_precedes;
  char __int_p_sep_by_space;
  char __int_n_cs_precedes;
  char __int_n_sep_by_space;
  char __int_p_sign_posn;
  char __int_n_sign_posn;
#endif
};


__BEGIN_NAMESPACE_STD

/* Set and/or return the current locale.  */
extern char *setlocale (int __category, __const char *__locale) __THROW;

/* Return the numeric/monetary information for the current locale.  */
extern struct lconv *localeconv (void) __THROW;

__END_NAMESPACE_STD


#ifdef      __USE_GNU
/* The concept of one static locale per category is not very well
   thought out.  Many applications will need to process its data using
   information from several different locales.  Another application is
   the implementation of the internationalization handling in the
   upcoming ISO C++ standard library.  To support this another set of
   the functions using locale data exist which have an additional
   argument.

   Attention: all these functions are *not* standardized in any form.
   This is a proof-of-concept implementation.  */

/* Get locale datatype definition.  */
# include <xlocale.h>

typedef __locale_t locale_t;

/* Return a reference to a data structure representing a set of locale
   datasets.  Unlike for the CATEGORY parameter for `setlocale' the
   CATEGORY_MASK parameter here uses a single bit for each category,
   made by OR'ing together LC_*_MASK bits above.  */
extern __locale_t newlocale (int __category_mask, __const char *__locale,
                       __locale_t __base) __THROW;

/* These are the bits that can be set in the CATEGORY_MASK argument to
   `newlocale'.  In the GNU implementation, LC_FOO_MASK has the value
   of (1 << LC_FOO), but this is not a part of the interface that
   callers can assume will be true.  */
# define LC_CTYPE_MASK        (1 << __LC_CTYPE)
# define LC_NUMERIC_MASK      (1 << __LC_NUMERIC)
# define LC_TIME_MASK         (1 << __LC_TIME)
# define LC_COLLATE_MASK      (1 << __LC_COLLATE)
# define LC_MONETARY_MASK     (1 << __LC_MONETARY)
# define LC_MESSAGES_MASK     (1 << __LC_MESSAGES)
# define LC_PAPER_MASK        (1 << __LC_PAPER)
# define LC_NAME_MASK         (1 << __LC_NAME)
# define LC_ADDRESS_MASK      (1 << __LC_ADDRESS)
# define LC_TELEPHONE_MASK    (1 << __LC_TELEPHONE)
# define LC_MEASUREMENT_MASK  (1 << __LC_MEASUREMENT)
# define LC_IDENTIFICATION_MASK     (1 << __LC_IDENTIFICATION)
# define LC_ALL_MASK          (LC_CTYPE_MASK \
                         | LC_NUMERIC_MASK \
                         | LC_TIME_MASK \
                         | LC_COLLATE_MASK \
                         | LC_MONETARY_MASK \
                         | LC_MESSAGES_MASK \
                         | LC_PAPER_MASK \
                         | LC_NAME_MASK \
                         | LC_ADDRESS_MASK \
                         | LC_TELEPHONE_MASK \
                         | LC_MEASUREMENT_MASK \
                         | LC_IDENTIFICATION_MASK \
                         )

/* Return a duplicate of the set of locale in DATASET.  All usage
   counters are increased if necessary.  */
extern __locale_t duplocale (__locale_t __dataset) __THROW;

/* Free the data associated with a locale dataset previously returned
   by a call to `setlocale_r'.  */
extern void freelocale (__locale_t __dataset) __THROW;

/* Switch the current thread's locale to DATASET.
   If DATASET is null, instead just return the current setting.
   The special value LC_GLOBAL_LOCALE is the initial setting
   for all threads and can also be installed any time, meaning
   the thread uses the global settings controlled by `setlocale'.  */
extern __locale_t uselocale (__locale_t __dataset) __THROW;

/* This value can be passed to `uselocale' and may be returned by it.
   Passing this value to any other function has undefined behavior.  */
# define LC_GLOBAL_LOCALE     ((__locale_t) -1L)

#endif

__END_DECLS

#endif /* locale.h  */

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