xref: /netbsd-src/external/lgpl3/mpc/dist/tests/tadd_ui.c (revision 154bfe8e089c1a0a4e9ed8414f08d3da90949162)
1 /* tadd_ui -- test file for mpc_add_ui.
2 
3 Copyright (C) 2008, 2010, 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 <stdlib.h>
22 #include "mpc-tests.h"
23 
24 static void
25 check_ternary_value (void)
26 {
27   mpfr_prec_t prec;
28   mpc_t z;
29 
30   mpc_init2 (z, 2);
31 
32   for (prec=2; prec <= 1024; prec++)
33     {
34       mpc_set_prec (z, prec);
35 
36       mpc_set_ui (z, 1, MPC_RNDNN);
37       if (mpc_add_ui (z, z, 1, MPC_RNDNZ))
38         {
39           printf ("Error in mpc_add_ui: 1+1 should be exact\n");
40           exit (1);
41         }
42 
43       mpc_set_ui (z, 1, MPC_RNDNN);
44       mpc_mul_2ui (z, z, (unsigned long int) prec, MPC_RNDNN);
45       if (mpc_add_ui (z, z, 1, MPC_RNDNN) == 0)
46         {
47           printf ("Error in mpc_add_ui: 2^prec+1 cannot be exact\n");
48           exit (1);
49         }
50     }
51 
52   mpc_clear (z);
53 }
54 
55 #define MPC_FUNCTION_CALL                                               \
56   P[0].mpc_inex = mpc_add_ui (P[1].mpc, P[2].mpc, P[3].ui, P[4].mpc_rnd)
57 #define MPC_FUNCTION_CALL_REUSE_OP1                                     \
58   P[0].mpc_inex = mpc_add_ui (P[1].mpc, P[1].mpc, P[3].ui, P[4].mpc_rnd)
59 
60 #include "tgeneric.tpl"
61 
62 int
63 main (void)
64 {
65   test_start ();
66 
67   check_ternary_value ();
68 
69   tgeneric_template ("add_ui.dsc", 2, 1024, 1, 1024);
70 
71   test_end ();
72 
73   return 0;
74 }
75