1 // { dg-add-options ieee }
2 
3 // 1999-08-23 bkoz
4 
5 // Copyright (C) 1999-2018 Free Software Foundation, Inc.
6 //
7 // This file is part of the GNU ISO C++ Library.  This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
11 // any later version.
12 
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 // GNU General Public License for more details.
17 
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3.  If not see
20 // <http://www.gnu.org/licenses/>.
21 
22 // 18.2.1.1 template class numeric_limits
23 
24 #include <limits>
25 #include <limits.h>
26 #include <float.h>
27 #include <cwchar>
28 #include <testsuite_hooks.h>
29 
30 template<typename T>
31 void
test_infinity()32 test_infinity()
33 {
34   bool test;
35 
36   if (std::numeric_limits<T>::has_infinity)
37     {
38       T inf = std::numeric_limits<T>::infinity();
39       test = (inf + inf == inf);
40     }
41   else
42     test = true;
43 
44   VERIFY (test);
45 }
46 
main()47 int main()
48 {
49   test_infinity<float>();
50   test_infinity<double>();
51   test_infinity<long double>();
52 
53   return 0;
54 }
55