xref: /netbsd-src/external/lgpl3/gmp/dist/tests/cxx/t-cast.cc (revision b1bb3099bf4d47bbe8c7be5b78240a535263771f)
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 http://www.gnu.org/licenses/.  */
19 
20 #include "gmp.h"
21 #include "gmpxx.h"
22 
23 
24 /* This code doesn't do anything when run, it just expands various C macros
25    to see that they don't trigger compile-time warnings from g++
26    -Wold-style-cast.  This option isn't used in a normal build, it has to be
27    added manually to make this test worthwhile.  */
28 
29 void
30 check_macros (void)
31 {
32   mpz_t          z;
33   long           l = 123;
34   unsigned long  u = 456;
35   int            i;
36   mp_limb_t      limb;
37 
38   mpz_init_set_ui (z, 0L);
39   i = mpz_odd_p (z);
40   i = mpz_even_p (z);
41   i = mpz_cmp_si (z, l);
42   i = mpz_cmp_ui (z, u);
43   mpz_clear (z);
44 
45   limb = GMP_NUMB_MASK;
46   limb = GMP_NUMB_MAX;
47   limb = GMP_NAIL_MASK;
48 
49   mpn_divmod (&limb, &limb, 1, &limb, 1);
50   mpn_divexact_by3 (&limb, &limb, 1);
51 }
52 
53 int
54 main (void)
55 {
56   return 0;
57 }
58