man > textdomain(3)

TEXTDOMAIN(3)                         Library Functions Manual                         TEXTDOMAIN(3)

NAME
       textdomain - set domain for future gettext() calls

SYNOPSIS
       #include <libintl.h>

       char * textdomain (const char * domainname);

DESCRIPTION
       The textdomain function sets or retrieves the current message domain.

       A message domain is a set of translatable msgid messages. Usually, every software package has
       its  own  message  domain.  The  domain name is used to determine the message catalog where a
       translation is looked up; it must be a non-empty string.

       The current message domain is used by the gettext, ngettext functions, and by  the  dgettext,
       dcgettext, dngettext and dcngettext functions when called with a NULL domainname argument.

       If  domainname  is  not NULL, the current message domain is set to domainname. The string the
       function stores internally is a copy of the domainname argument.

       If domainname is NULL, the function returns the current message domain.

RETURN VALUE
       If successful, the textdomain function returns the current  message  domain,  after  possibly
       changing  it.  The  resulting  string is valid until the next textdomain call and must not be
       modified or freed. If a memory allocation failure occurs, it sets errno to ENOMEM and returns
       NULL.

ERRORS
       The following error can occur, among others:

       ENOMEM Not enough memory available.

BUGS
       The return type ought to be const char *, but is char * to avoid warnings in C code predating
       ANSI C.

SEE ALSO
       gettext(3), ngettext(3), bindtextdomain(3), bind_textdomain_codeset(3)

GNU gettext 0.20.1.124-32cf                   May 2001                                 TEXTDOMAIN(3)