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

locale.h(0P)              POSIX Programmer's Manual             locale.h(0P)

PROLOG         top

       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         top

       locale.h — category macros

SYNOPSIS         top

       #include <locale.h>

DESCRIPTION         top

       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         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       Chapter 8, Environment Variables, stddef.h(0p)

       The System Interfaces volume of POSIX.1‐2008, duplocale(3p),
       freelocale(3p), localeconv(3p), newlocale(3p), setlocale(3p),
       uselocale(3p)

COPYRIGHT         top

       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 .

IEEE/The Open Group                 2013                        locale.h(0P)

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