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+.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
+.\"
+.\" This is free documentation; you can redistribute it and/or
+.\" modify it under the terms of the GNU General Public License as
+.\" published by the Free Software Foundation; either version 2 of
+.\" the License, or (at your option) any later version.
+.\"
+.\" References consulted:
+.\"   GNU glibc-2 source code and manual
+.\"   GNU gettext source code and manual
+.\"   LI18NUX 2000 Globalization Specification
+.\"
+.TH NGETTEXT 3 "May 2001" "GNU gettext 20220912"
+.SH NAME
+ngettext, dngettext, dcngettext \- translate message and choose plural form
+.SH SYNOPSIS
+.nf
+.B #include <libintl.h>
+.sp
+.BI "char * ngettext (const char * " msgid ", const char * " msgid_plural ,
+.BI "                 unsigned long int " n );
+.BI "char * dngettext (const char * " domainname ,
+.BI "                  const char * " msgid ", const char * " msgid_plural ,
+.BI "                  unsigned long int " n );
+.BI "char * dcngettext (const char * " domainname ,
+.BI "                   const char * " msgid ", const char * " msgid_plural ,
+.BI "                   unsigned long int " n ", int " category );
+.fi
+.SH DESCRIPTION
+The \fBngettext\fP, \fBdngettext\fP and \fBdcngettext\fP functions attempt to
+translate a text string into the user's native language, by looking up the
+appropriate plural form of the translation in a message catalog.
+.PP
+Plural forms are grammatical variants depending on the a number. Some languages
+have two forms, called singular and plural. Other languages have three forms,
+called singular, dual and plural. There are also languages with four forms.
+.PP
+The \fBngettext\fP, \fBdngettext\fP and \fBdcngettext\fP functions work like
+the \fBgettext\fP, \fBdgettext\fP and \fBdcgettext\fP functions, respectively.
+Additionally, they choose the appropriate plural form, which depends on the
+number \fIn\fP and the language of the message catalog where the translation
+was found.
+.PP
+In the "C" locale, or if none of the used catalogs contain a translation for
+\fImsgid\fP, the \fBngettext\fP, \fBdngettext\fP and \fBdcngettext\fP functions
+return \fImsgid\fP if \fIn\fP == 1, or \fImsgid_plural\fP if \fIn\fP != 1.
+.SH "RETURN VALUE"
+If a translation was found in one of the specified catalogs, the appropriate
+plural form is converted to the locale's codeset and returned. The resulting
+string is statically allocated and must not be modified or freed. Otherwise
+\fImsgid\fP or \fImsgid_plural\fP is returned, as described above.
+.SH ERRORS
+\fBerrno\fP is not modified.
+.SH BUGS
+The return type ought to be \fBconst char *\fP, but is \fBchar *\fP to avoid
+warnings in C code predating ANSI C.
+.SH "SEE ALSO"
+.BR gettext (3),
+.BR dgettext (3),
+.BR dcgettext (3)