/* mpc_mul_fr -- Multiply a complex number by a floating-point number.

Copyright (C) 2002, 2008, 2009, 2010, 2011, 2012 INRIA

This file is part of GNU MPC.

GNU MPC 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.

GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ .

*/

#include "mpc-impl.h"

int

mpc_mul_fr (mpc_ptr a, mpc_srcptr b, mpfr_srcptr c, mpc_rnd_t rnd)

{

  int inex_re, inex_im;

  mpfr_t real;

  if (c == mpc_realref (a))

    /* We have to use a temporary variable. */

    mpfr_init2 (real, MPC_PREC_RE (a));

  else

    real [0] = mpc_realref (a) [0];

  inex_re = mpfr_mul (real, mpc_realref(b), c, MPC_RND_RE(rnd));

  inex_im = mpfr_mul (mpc_imagref(a), mpc_imagref(b), c, MPC_RND_IM(rnd));

  mpfr_set (mpc_realref (a), real, MPFR_RNDN); /* exact */

  if (c == mpc_realref (a))

    mpfr_clear (real);

  return MPC_INEX(inex_re, inex_im);

}