--- /dev/null
+/* mpf_swap (U, V) -- Swap U and V.
+
+Copyright 1997, 1998, 2000, 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 "gmp.h"
+#include "gmp-impl.h"
+
+void
+mpf_swap (mpf_ptr u, mpf_ptr v)
+{
+ mp_ptr up, vp;
+ mp_size_t usize, vsize;
+ mp_size_t uprec, vprec;
+ mp_exp_t uexp, vexp;
+
+ uprec = u->_mp_prec;
+ vprec = v->_mp_prec;
+ v->_mp_prec = uprec;
+ u->_mp_prec = vprec;
+
+ usize = u->_mp_size;
+ vsize = v->_mp_size;
+ v->_mp_size = usize;
+ u->_mp_size = vsize;
+
+ uexp = u->_mp_exp;
+ vexp = v->_mp_exp;
+ v->_mp_exp = uexp;
+ u->_mp_exp = vexp;
+
+ up = u->_mp_d;
+ vp = v->_mp_d;
+ v->_mp_d = up;
+ u->_mp_d = vp;
+}