/* test file for mpc_ui_div.

Copyright (C) INRIA, 2008

This file is part of the MPC Library.

The MPC 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 MPC 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 MPC 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 "mpc-tests.h"

static void
special (void)
{
  mpc_t a, b;

  mpc_init2 (a, 10);
  mpc_init2 (b, 10);

  mpc_set_ui_ui (a, 2, 4, MPC_RNDNN);
  mpc_ui_div (b, 10, a, MPC_RNDNN);
  if (mpc_cmp_si_si (b, 1, -2) != 0)
    {
      printf ("10/(2,4) failed\n");
      printf ("expected (1,-2)\n");
      printf ("got      ");
      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
      printf ("\n");
      exit (1);
    }

  /* 0/(-1-0*I) should give (-0, +0) */
  mpfr_set_str (MPC_RE(a), "-1", 10, GMP_RNDN);
  mpfr_set_str (MPC_IM(a), "-0", 10, GMP_RNDN);
  mpc_ui_div (b, 0, a, MPC_RNDNN);
  if ((mpc_cmp_si_si (b, 0, 0) != 0) || (MPFR_SIGN (MPC_RE(b)) > 0)
      || (MPFR_SIGN (MPC_IM(b)) < 0))
    {
      printf ("0/(-1,-0) failed\n");
      printf ("expected (-0,+0)\n");
      printf ("got      ");
      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
      printf ("\n");
      exit (1);
    }

  mpc_set_ui_ui (a, 1, 0, MPC_RNDNN);
  mpc_ui_div (b, 1, a, MPC_RNDNN);
  if (mpc_cmp_si_si (b, 1, 0) != 0)
    {
      printf ("1/(1,0) failed\n");
      printf ("expected (1,0)\n");
      printf ("got      ");
      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
      printf ("\n");
      exit (1);
    }

  /* problem reported by Timo Hartmann with mpc-0.7, 21 Oct 2009 */
  mpc_set_ui_ui (a, 4, 0, MPC_RNDNN);
  mpc_ui_div (b, 1, a, MPC_RNDNN);
  if (mpfr_cmp_ui_2exp (MPC_RE(b), 1, -2) != 0 ||
      mpfr_cmp_ui (MPC_IM(b), 0) != 0 || mpfr_signbit (MPC_IM(b)) != 0)
    {
      printf ("1/(4,0) failed\n");
      printf ("expected (1/4,0)\n");
      printf ("got      ");
      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
      printf ("\n");
      exit (1);
    }

  mpc_clear (a);
  mpc_clear (b);
}

int
main (void)
{
  DECL_FUNC (CUC, f, mpc_ui_div);

  test_start ();

  special ();

  tgeneric (f, 2, 1024, 7, 4096);

  test_end ();

  return 0;
}