1/* tmul_i -- test file for mpc_mul_i.
2
3Copyright (C)  2008, 2009, 2010, 2011 INRIA
4
5This file is part of GNU MPC.
6
7GNU MPC is free software; you can redistribute it and/or modify it under
8the terms of the GNU Lesser General Public License as published by the
9Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
15more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with this program. If not, see http://www.gnu.org/licenses/ .
19*/
20
21#include "mpc-tests.h"
22
23static void
24check_different_precisions(void)
25{
26  /* check reuse when real and imaginary part have different precisions. */
27  mpc_t z, expected, got;
28  int res;
29
30  mpc_init2(z, 128);
31  mpc_init2(expected, 128);
32  mpc_init2(got, 128);
33
34  /* change precision of one part */
35  mpfr_set_prec (mpc_imagref (z), 32);
36  mpfr_set_prec (mpc_imagref (expected), 32);
37  mpfr_set_prec (mpc_imagref (got), 32);
38
39  mpfr_set_str (mpc_realref (z), "0x100000000fp-32", 16, GMP_RNDN);
40  mpfr_set_str (mpc_imagref (z), "-1", 2, GMP_RNDN);
41  mpfr_set_str (mpc_realref (expected), "+1", 2, GMP_RNDN);
42  mpfr_set_str (mpc_imagref (expected), "0x100000000fp-32", 16, GMP_RNDN);
43
44  mpc_set (got, z, MPC_RNDNN);
45  res = mpc_mul_i (got, got, +1, MPC_RNDNN);
46  if (MPC_INEX_RE(res) != 0 || MPC_INEX_IM(res) >=0)
47    {
48      printf("Wrong inexact flag for mpc_mul_i(z, z, n)\n"
49             "     got (re=%2d, im=%2d)\nexpected (re= 0, im=-1)\n",
50             MPC_INEX_RE(res), MPC_INEX_IM(res));
51      exit(1);
52    }
53  if (mpc_cmp(got, expected) != 0)
54    {
55      printf ("Error for mpc_mul_i(z, z, n) for\n");
56      MPC_OUT (z);
57      printf ("n=+1\n");
58      MPC_OUT (expected);
59      MPC_OUT (got);
60
61      exit (1);
62    }
63
64  mpc_neg (expected, expected, MPC_RNDNN);
65  mpc_set (got, z, MPC_RNDNN);
66  mpc_mul_i (got, got, -1, MPC_RNDNN);
67  if (mpc_cmp(got, expected) != 0)
68    {
69      printf ("Error for mpc_mul_i(z, z, n) for\n");
70      MPC_OUT (z);
71      printf ("n=-1\n");
72      MPC_OUT (expected);
73      MPC_OUT (got);
74
75      exit (1);
76    }
77
78  mpc_clear (z);
79  mpc_clear (expected);
80  mpc_clear (got);
81}
82
83int
84main (void)
85{
86  DECL_FUNC (CCI, f, mpc_mul_i);
87
88  test_start ();
89
90  check_different_precisions ();
91  tgeneric (f, 2, 1024, 7, -1);
92
93  test_end ();
94
95  return 0;
96}
97