nl_types.h man page

Prolog

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nl_types.h — data types

Synopsis

#include <nl_types.h>

Description

The <nl_types.h> header shall define 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 define at least the following symbolic constants:

NL_SETD
Used by gencat when no $set directive is specified in a message text source file. 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.

See Also

<langinfo.h>

The System Interfaces volume of POSIX.1‐2008, catclose(), catgets(), catopen(), nl_langinfo()

The Shell and Utilities volume of POSIX.1‐2008, gencat

Info

2013 IEEE/The Open Group POSIX Programmer's Manual