1 // { dg-add-options ieee }
2
3 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 // 18.2.1.1 template class numeric_limits
21
22 #include <limits>
23 #include <testsuite_hooks.h>
24
25 template<typename T>
26 void
test_traps(T r=T (0))27 test_traps(T r = T(0))
28 {
29 typedef T value_type;
30 volatile value_type i(5);
31 volatile value_type j(0);
32
33 if (!std::numeric_limits<value_type>::traps)
34 r = i / j;
35 }
36
37 // libstdc++/22203
main()38 int main()
39 {
40 test_traps<int>();
41 test_traps<unsigned int>();
42 test_traps<long>();
43 test_traps<unsigned long>();
44 test_traps<long long>();
45 test_traps<unsigned long long>();
46
47 /*
48 For floating points, trapping is a different, more complicated
49 story. If is_iecxxx is true, then division by zero would not trap
50 (infinity). If is_iecxxx is false, we don't know (VAX may trap for
51 0/0 -- I have to check). For most cases (i.e. IEE-754), trapping
52 for floating points have to do with whether there is a support for
53 signaling NaN.
54 - Gaby.
55 */
56 // test_traps<float>();
57 // test_traps<double>();
58 // test_traps<long double>();
59
60 return 0;
61 }
62