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locale.h
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/* Copyright (C) 1991, 92, 95, 96, 97, 98, 99 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* ISO C Standard: 4.4 LOCALIZATION <locale.h>
*/
#ifndef _LOCALE_H
#define _LOCALE_H 1
#include <features.h>
#define __need_NULL
#include <stddef.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 0
#define LC_NUMERIC 1
#define LC_TIME 2
#define LC_COLLATE 3
#define LC_MONETARY 4
#define LC_MESSAGES 5
#define LC_ALL 6
#define LC_PAPER 7
#define LC_NAME 8
#define LC_ADDRESS 9
#define LC_TELEPHONE 10
#define LC_MEASUREMENT 11
#define LC_IDENTIFICATION 12
/* 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;
};
/* 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;
#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>
/* 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.
I.e., 1 << LC_CTYPE means to load data for this category. If
BASE is non-null the appropriate category information in the BASE
record is replaced. */
extern __locale_t __newlocale (int __category_mask, __const char *__locale,
__locale_t __base) __THROW;
/* 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;
#endif
__END_DECLS
#endif /* locale.h */