1 /* tsqrt -- test file for mpc_sqrt.
2
3 Copyright (C) 2008, 2013, 2020 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 #define MPC_FUNCTION_CALL \
24 P[0].mpc_inex = mpc_sqrt (P[1].mpc, P[2].mpc, P[3].mpc_rnd)
25 #define MPC_FUNCTION_CALL_REUSE_OP1 \
26 P[0].mpc_inex = mpc_sqrt (P[1].mpc, P[1].mpc, P[3].mpc_rnd)
27
28 #include "data_check.tpl"
29 #include "tgeneric.tpl"
30
31 /* check with reduced exponent range */
32 static void
bug20200207(void)33 bug20200207 (void)
34 {
35 mpfr_exp_t emin = mpfr_get_emin ();
36 mpfr_exp_t emax = mpfr_get_emax ();
37 mpc_t x, z, zr;
38
39 mpfr_set_emin (-148);
40 mpfr_set_emax (128);
41 mpc_init2 (x, 24);
42 mpc_init2 (z, 24);
43 mpc_init2 (zr, 24);
44 mpfr_set_d (mpc_realref (x), -1.89432151320234e24, MPFR_RNDN);
45 mpfr_set_d (mpc_imagref (x), -1.06397209600000e9, MPFR_RNDN);
46 mpc_sqrt (z, x, MPC_RNDNN);
47 /* square root is 0.00038652126908433 - 1.37634353022868e12*I */
48 mpfr_set_d (mpc_realref (zr), 0.00038652126908433, MPFR_RNDN);
49 mpfr_set_d (mpc_imagref (zr), -1.37634353022868e12, MPFR_RNDN);
50 if (mpc_cmp (z, zr))
51 {
52 printf ("Incorrect square root with reduced exponent range:\n");
53 mpfr_printf ("Expected (%Re,%Re)\n", mpc_realref (zr), mpc_imagref (zr));
54 mpfr_printf ("Got (%Re,%Re)\n", mpc_realref (z), mpc_imagref (z));
55 exit (1);
56 }
57 mpc_clear (x);
58 mpc_clear (z);
59 mpc_clear (zr);
60 mpfr_set_emin (emin);
61 mpfr_set_emax (emax);
62 }
63
64 int
main(void)65 main (void)
66 {
67 test_start ();
68
69 bug20200207 ();
70 data_check_template ("sqrt.dsc", "sqrt.dat");
71
72 tgeneric_template ("sqrt.dsc", 2, 1024, 7, 256);
73
74 test_end ();
75
76 return 0;
77 }
78