--- /dev/null
+/* operator<< -- mpq formatted output to an ostream.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
+
+#include <iostream>
+#include <stdarg.h> /* for va_list and hence doprnt_funs_t */
+#include <string.h>
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+using namespace std;
+
+
+ostream&
+operator<< (ostream &o, mpq_srcptr q)
+{
+ struct doprnt_params_t param;
+ __gmp_doprnt_params_from_ios (¶m, o);
+ return __gmp_doprnt_integer_ostream (o, ¶m,
+ mpq_get_str (NULL, param.base, q));
+}