## Artifact
bf0e743f76a534d8214e58e0464bb324b2bb5d25:

```
/* mpfr_swap (U, V) -- Swap U and V.
Copyright 2000, 2001 Free Software Foundation, Inc.
This file is part of the MPFR Library.
The MPFR 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 2.1 of the License, or (at your
option) any later version.
The MPFR 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 MPFR Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include "gmp.h"
#include "mpfr.h"
#include "mpfr-impl.h"
void
mpfr_swap (mpfr_ptr u, mpfr_ptr v)
{
mp_ptr up, vp;
mp_size_t usize, vsize;
mp_prec_t uprec, vprec;
mp_exp_t uexp, vexp;
uprec = MPFR_PREC(u);
vprec = MPFR_PREC(v);
MPFR_PREC(v) = uprec;
MPFR_PREC(u) = vprec;
usize = MPFR_SIZE(u);
vsize = MPFR_SIZE(v);
MPFR_SIZE(v) = usize;
MPFR_SIZE(u) = vsize;
uexp = MPFR_EXP(u);
vexp = MPFR_EXP(v);
MPFR_EXP(v) = uexp;
MPFR_EXP(u) = vexp;
up = MPFR_MANT(u);
vp = MPFR_MANT(v);
MPFR_MANT(v) = up;
MPFR_MANT(u) = vp;
}
```