1 /* tui_div -- test file for mpc_ui_div.
2
3 Copyright (C) 2008, 2011, 2012, 2013 INRIA
4
5 This file is part of GNU MPC.
6
7 GNU MPC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU Lesser General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
15 more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with this program. If not, see http://www.gnu.org/licenses/ .
19 */
20
21 #include "mpc-tests.h"
22
23 static void
test_special(void)24 test_special (void)
25 {
26 mpc_t a, b;
27
28 mpc_init2 (a, 10);
29 mpc_init2 (b, 10);
30
31 mpc_set_ui_ui (a, 2, 4, MPC_RNDNN);
32 mpc_ui_div (b, 10, a, MPC_RNDNN);
33 if (mpc_cmp_si_si (b, 1, -2) != 0)
34 {
35 printf ("10/(2,4) failed\n");
36 printf ("expected (1,-2)\n");
37 printf ("got ");
38 mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
39 printf ("\n");
40 exit (1);
41 }
42
43 /* 0/(-1-0*I) should give (-0, +0) */
44 mpfr_set_str (mpc_realref(a), "-1", 10, MPFR_RNDN);
45 mpfr_set_str (mpc_imagref(a), "-0", 10, MPFR_RNDN);
46 mpc_ui_div (b, 0, a, MPC_RNDNN);
47 if ((mpc_cmp_si_si (b, 0, 0) != 0) || (MPFR_SIGN (mpc_realref(b)) > 0)
48 || (MPFR_SIGN (mpc_imagref(b)) < 0))
49 {
50 printf ("0/(-1,-0) failed\n");
51 printf ("expected (-0,+0)\n");
52 printf ("got ");
53 mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
54 printf ("\n");
55 exit (1);
56 }
57
58 mpc_set_ui_ui (a, 1, 0, MPC_RNDNN);
59 mpc_ui_div (b, 1, a, MPC_RNDNN);
60 if (mpc_cmp_si_si (b, 1, 0) != 0)
61 {
62 printf ("1/(1,0) failed\n");
63 printf ("expected (1,0)\n");
64 printf ("got ");
65 mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
66 printf ("\n");
67 exit (1);
68 }
69
70 /* problem reported by Timo Hartmann with mpc-0.7, 21 Oct 2009 */
71 mpc_set_ui_ui (a, 4, 0, MPC_RNDNN);
72 mpc_ui_div (b, 1, a, MPC_RNDNN);
73 if (mpfr_cmp_ui_2exp (mpc_realref(b), 1, -2) != 0 ||
74 mpfr_cmp_ui (mpc_imagref(b), 0) != 0 || mpfr_signbit (mpc_imagref(b)) != 0)
75 {
76 printf ("1/(4,0) failed\n");
77 printf ("expected (1/4,0)\n");
78 printf ("got ");
79 mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
80 printf ("\n");
81 exit (1);
82 }
83
84 mpc_clear (a);
85 mpc_clear (b);
86 }
87
88 #define MPC_FUNCTION_CALL \
89 P[0].mpc_inex = mpc_ui_div (P[1].mpc, P[2].ui, P[3].mpc, P[4].mpc_rnd)
90 #define MPC_FUNCTION_CALL_REUSE_OP2 \
91 P[0].mpc_inex = mpc_ui_div (P[1].mpc, P[2].ui, P[1].mpc, P[4].mpc_rnd)
92
93 #include "tgeneric.tpl"
94
95 int
main(void)96 main (void)
97 {
98 test_start ();
99
100 test_special ();
101
102 tgeneric_template ("ui_div.dsc", 2, 1024, 7, 4096);
103
104 test_end ();
105
106 return 0;
107 }
108