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locale.h

Section: POSIX Programmer's Manual (0P)
Updated: 2013
Index Return to Main Contents
 

PROLOG

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

 

NAME

locale.h --- category macros  

SYNOPSIS

#include <locale.h>
 

DESCRIPTION

Some of the functionality described on this reference page extends the ISO C standard. Applications shall define the appropriate feature test macro (see the System Interfaces volume of POSIX.1-2008, Section 2.2, The Compilation Environment) to enable the visibility of these symbols in this header. The <locale.h> header shall define the lconv structure, which shall include at least the following members. (See the definitions of LC_MONETARY in Section 7.3.3, LC_MONETARY and Section 7.3.4, 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 described 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 integer constant expressions with distinct values for use as the first argument to the setlocale() function. Implementations may add additional masks using the form LC_* and an uppercase letter. The <locale.h> header shall contain at least the following macros representing bitmasks for use with the newlocale() function for each supported locale category: LC_COLLATE_MASK LC_CTYPE_MASK LC_MESSAGES_MASK LC_MONETARY_MASK LC_NUMERIC_MASK LC_TIME_MASK Implementations may add additional masks using the form LC_*_MASK. In addition, a macro to set the bits for all categories set shall be defined: LC_ALL_MASK The <locale.h> header shall define LC_GLOBAL_LOCALE, a special locale object descriptor used by the duplocale() and uselocale() functions. The <locale.h> header shall define the locale_t type, representing a locale object. The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided for use with ISO C standard compilers.


locale_t      duplocale(locale_t);
void          freelocale(locale_t);
struct lconv *localeconv(void);
locale_t      newlocale(int, const char *, locale_t);
char         *setlocale(int, const char *);
locale_t      uselocale (locale_t);

The following sections are informative.  

APPLICATION USAGE

None.  

RATIONALE

None.  

FUTURE DIRECTIONS

None.  

SEE ALSO

Chapter 8, Environment Variables, <stddef.h> The System Interfaces volume of POSIX.1-2008, duplocale(), freelocale(), localeconv(), newlocale(), setlocale(), uselocale()  

COPYRIGHT

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .


 

Index

PROLOG
NAME
SYNOPSIS
DESCRIPTION
APPLICATION USAGE
RATIONALE
FUTURE DIRECTIONS
SEE ALSO
COPYRIGHT


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