1locale.h(0P)               POSIX Programmer's Manual              locale.h(0P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
10
11

NAME

13       locale.h — category macros
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SYNOPSIS

16       #include <locale.h>
17

DESCRIPTION

19       Some of the functionality described on this reference page extends  the
20       ISO C  standard. Applications shall define the appropriate feature test
21       macro (see the System Interfaces volume of POSIX.1‐2008,  Section  2.2,
22       The  Compilation Environment) to enable the visibility of these symbols
23       in this header.
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25       The <locale.h> header shall define the  lconv  structure,  which  shall
26       include  at  least  the  following  members.   (See  the definitions of
27       LC_MONETARY  in  Section  7.3.3,   LC_MONETARY   and   Section   7.3.4,
28       LC_NUMERIC.)
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30           char    *currency_symbol
31           char    *decimal_point
32           char     frac_digits
33           char    *grouping
34           char    *int_curr_symbol
35           char     int_frac_digits
36           char     int_n_cs_precedes
37           char     int_n_sep_by_space
38           char     int_n_sign_posn
39           char     int_p_cs_precedes
40           char     int_p_sep_by_space
41           char     int_p_sign_posn
42           char    *mon_decimal_point
43           char    *mon_grouping
44           char    *mon_thousands_sep
45           char    *negative_sign
46           char     n_cs_precedes
47           char     n_sep_by_space
48           char     n_sign_posn
49           char    *positive_sign
50           char     p_cs_precedes
51           char     p_sep_by_space
52           char     p_sign_posn
53           char    *thousands_sep
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55       The  <locale.h>  header  shall define NULL (as described in <stddef.h>)
56       and at least the following as macros:
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58       LC_ALL
59       LC_COLLATE
60       LC_CTYPE
61       LC_MESSAGES
62       LC_MONETARY
63       LC_NUMERIC
64       LC_TIME
65
66       which shall expand to integer constant expressions with distinct values
67       for use as the first argument to the setlocale() function.
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69       Implementations  may  add  additional  masks using the form LC_* and an
70       uppercase letter.
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72       The <locale.h> header shall contain at least the following macros  rep‐
73       resenting  bitmasks for use with the newlocale() function for each sup‐
74       ported locale category: LC_COLLATE_MASK LC_CTYPE_MASK  LC_MESSAGES_MASK
75       LC_MONETARY_MASK LC_NUMERIC_MASK LC_TIME_MASK
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77       Implementations may add additional masks using the form LC_*_MASK.
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79       In  addition,  a  macro to set the bits for all categories set shall be
80       defined: LC_ALL_MASK
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82       The <locale.h> header shall define LC_GLOBAL_LOCALE, a  special  locale
83       object descriptor used by the duplocale() and uselocale() functions.
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85       The  <locale.h>  header  shall define the locale_t type, representing a
86       locale object.
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88       The following shall be declared as functions and may also be defined as
89       macros.  Function prototypes shall be provided for use with ISO C stan‐
90       dard compilers.
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92           locale_t      duplocale(locale_t);
93           void          freelocale(locale_t);
94           struct lconv *localeconv(void);
95           locale_t      newlocale(int, const char *, locale_t);
96           char         *setlocale(int, const char *);
97           locale_t      uselocale (locale_t);
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99       The following sections are informative.
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APPLICATION USAGE

102       None.
103

RATIONALE

105       None.
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FUTURE DIRECTIONS

108       None.
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SEE ALSO

111       Chapter 8, Environment Variables, <stddef.h>
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113       The System Interfaces  volume  of  POSIX.1‐2008,  duplocale(),  freelo‐
114       cale(), localeconv(), newlocale(), setlocale(), uselocale()
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117       Portions  of  this text are reprinted and reproduced in electronic form
118       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
119       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
120       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
121       cal  and  Electronics  Engineers,  Inc  and  The  Open Group.  (This is
122       POSIX.1-2008 with the 2013 Technical Corrigendum  1  applied.)  In  the
123       event of any discrepancy between this version and the original IEEE and
124       The Open Group Standard, the original IEEE and The Open Group  Standard
125       is  the  referee document. The original Standard can be obtained online
126       at http://www.unix.org/online.html .
127
128       Any typographical or formatting errors that appear  in  this  page  are
129       most likely to have been introduced during the conversion of the source
130       files to man page format. To report such errors,  see  https://www.ker‐
131       nel.org/doc/man-pages/reporting_bugs.html .
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135IEEE/The Open Group                  2013                         locale.h(0P)
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