nl_langinfo(3p) [suse man page]

NL_LANGINFO(3P) 					     POSIX Programmer's Manual						   NL_LANGINFO(3P)

PROLOG

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

NAME

       nl_langinfo - language information

SYNOPSIS

       #include <langinfo.h>

       char *nl_langinfo(nl_item item);

DESCRIPTION

       The nl_langinfo() function shall return a pointer to a string containing information relevant to the particular language or  cultural  area
       defined in the program's locale (see <langinfo.h>).  The manifest constant names and values of item are defined in <langinfo.h>.  For exam-
       ple:

	      nl_langinfo(ABDAY_1)

       would return a pointer to the string "Dom" if the identified language was Portuguese, and "Sun" if the identified language was English.

       Calls to setlocale() with a category corresponding to the category of item (see <langinfo.h>), or to the category LC_ALL  ,  may  overwrite
       the array pointed to by the return value.

       The nl_langinfo() function need not be reentrant. A function that is not required to be reentrant is not required to be thread-safe.

RETURN VALUE

       In  a  locale  where langinfo data is not defined, nl_langinfo() shall return a pointer to the corresponding string in the POSIX locale. In
       all locales, nl_langinfo() shall return a pointer to an empty string if item contains an invalid setting.

       This pointer may point to static data that may be overwritten on the next call.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Getting Date and Time Formatting Information
       The following example returns a pointer to a string containing date and time formatting information, as defined in the LC_TIME category	of
       the current locale.

	      #include <time.h>
	      #include <langinfo.h>
	      ...
	      strftime(datestring, sizeof(datestring), nl_langinfo(D_T_FMT), tm);
	      ...

APPLICATION USAGE

       The array pointed to by the return value should not be modified by the program, but may be modified by further calls to nl_langinfo().

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       setlocale(), the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 7, Locale, <langinfo.h>, <nl_types.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003							   NL_LANGINFO(3P)

Check Out this Related Man Page

<nl_types.h>(P) 					     POSIX Programmer's Manual						   <nl_types.h>(P)

NAME

       nl_types.h - data types

SYNOPSIS

       #include <nl_types.h>

DESCRIPTION

       The <nl_types.h> header shall contain definitions of at least the following types:

       nl_catd
	      Used by the message catalog functions catopen(), catgets(), and catclose() to identify a catalog descriptor.

       nl_item
	      Used by nl_langinfo() to identify items of langinfo data.  Values of objects of type nl_item are defined in <langinfo.h> .

       The <nl_types.h> header shall contain definitions of at least the following constants:

       NL_SETD
	      Used  by gencat when no $set directive is specified in a message text source file; see the Internationalization Guide. This constant
	      can be passed as the value of set_id on subsequent calls to catgets() (that is, to retrieve messages from the default message  set).
	      The value of NL_SETD is implementation-defined.

       NL_CAT_LOCALE
	      Value  that  must  be  passed as the oflag argument to catopen() to ensure that message catalog selection depends on the LC_MESSAGES
	      locale category, rather than directly on the LANG environment variable.

       The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.

	      int	catclose(nl_catd);
	      char     *catgets(nl_catd, int, int, const char *);
	      nl_catd	catopen(const char *, int);

       The following sections are informative.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       <langinfo.h> , the System Interfaces volume of IEEE Std 1003.1-2001, catclose(), catgets(), catopen(), nl_langinfo(), the Shell and  Utili-
       ties volume of IEEE Std 1003.1-2001, gencat

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003							   <nl_types.h>(P)

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nl_langinfo(3p) [suse man page]

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