nl_types.h, nl_types - native language data types
This header contains the following definitions:
nl_catd
Used by the message catalog functions catopen,
catgets and catclose to identify a catalog.
nl_item
Used by nl_langinfo to identify items of langinfo
data. Values for objects of type nl_item are defined in
<langinfo.h>.
NL_SETD
Used by gencat when no $set directive is
specified in a message text source file. This constant can be used in
subsequent calls to catgets as the value of the set identifier
parameter.
NL_MGSMAX
Maximum number of messages per set.
NL_SETMAX
Maximum number of sets per catalog.
NL_TEXTMAX
Maximum size of a message.