0p:nl types.h
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nl_types.h - data types
#include <nl_types.h>
Contents |
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 descrip-
tor.
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 International-
ization 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 pro-
vided.
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.
RELATED
<langinfo.h> , the System Interfaces volume of IEEE Std 1003.1-2001, catclose(), catgets(), catopen(), nl_lang-
info(), 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, Stan-
dard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifica-
tions 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)