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