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<nl_types.h>(0P)           POSIX Programmer's Manual          <nl_types.h>(0P)

NAME
       nl_types.h - data types
SYNOPSIS
       #include <nl_types.h>
DESCRIPTION
       The  <nl_types.h> header shall contain definitions of at least the fol-
       lowing 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.  Val-
              ues of objects of type nl_item are defined in <langinfo.h> .

       The <nl_types.h> header shall contain definitions of at least the  fol-
       lowing constants:
       NL_SETD
              Used  by gencat when no $set directive is specified in a message
              text source file; see the Internationalization Guide. This  con-
              stant  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 Technology
       --  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>(0P)