nl_types.h - data types
#include <nl_types.h>
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);
None.
None.
None.
XSH catclose , catgets , catopen , nl_langinfo
XCU gencat
First released in Issue 2.
The <nl_types.h> header is moved from the XSI option to the Base.
This reference page is clarified with respect to macros and symbolic constants.
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