xref: /netbsd-src/external/lgpl3/gmp/dist/tests/cxx/t-cast.cc (revision 72c7faa4dbb41dbb0238d6b4a109da0d4b236dd4)
1 /* Test g++ -Wold-style-cast cleanliness.
2 
3 Copyright 2003 Free Software Foundation, Inc.
4 
5 This file is part of the GNU MP Library test suite.
6 
7 The GNU MP Library test suite is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 3 of the License,
10 or (at your option) any later version.
11 
12 The GNU MP Library test suite is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
15 Public License for more details.
16 
17 You should have received a copy of the GNU General Public License along with
18 the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
19 
20 #include "gmpxx.h"
21 
22 
23 /* This code doesn't do anything when run, it just expands various C macros
24    to see that they don't trigger compile-time warnings from g++
25    -Wold-style-cast.  This option isn't used in a normal build, it has to be
26    added manually to make this test worthwhile.  */
27 
28 void
check_macros(void)29 check_macros (void)
30 {
31   mpz_t          z;
32   long           l = 123;
33   unsigned long  u = 456;
34   int            i;
35   mp_limb_t      limb;
36 
37   mpz_init_set_ui (z, 0L);
38   i = mpz_odd_p (z);
39   i = mpz_even_p (z);
40   i = mpz_cmp_si (z, l);
41   i = mpz_cmp_ui (z, u);
42   mpz_clear (z);
43 
44   limb = GMP_NUMB_MASK;
45   limb = GMP_NUMB_MAX;
46   limb = GMP_NAIL_MASK;
47 
48   mpn_divmod (&limb, &limb, 1, &limb, 1);
49   mpn_divexact_by3 (&limb, &limb, 1);
50 }
51 
52 int
main(void)53 main (void)
54 {
55   return 0;
56 }
57