1// { dg-options "-std=gnu++11" }
2// { dg-add-options ieee }
3
4// 2010-02-25  Ed Smith-Rowland
5
6// Copyright (C) 2010-2015 Free Software Foundation, Inc.
7//
8// This file is part of the GNU ISO C++ Library.  This library is free
9// software; you can redistribute it and/or modify it under the
10// terms of the GNU General Public License as published by the
11// Free Software Foundation; either version 3, or (at your option)
12// any later version.
13
14// This library is distributed in the hope that it will be useful,
15// but WITHOUT ANY WARRANTY; without even the implied warranty of
16// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17// GNU General Public License for more details.
18
19// You should have received a copy of the GNU General Public License along
20// with this library; see the file COPYING3.  If not see
21// <http://www.gnu.org/licenses/>.
22
23// 18.2.1.1 template class numeric_limits
24
25#include <limits>
26#include <type_traits>
27#include <testsuite_hooks.h>
28
29template<typename T>
30  void
31  do_test(std::true_type)
32  {
33    bool test __attribute__((unused)) = true;
34    T limits_min = std::numeric_limits<T>::min();
35    VERIFY( std::numeric_limits<T>::lowest() == limits_min );
36  }
37
38template<typename T>
39  void
40  do_test(std::false_type)
41  {
42    bool test __attribute__((unused)) = true;
43    T limits_max = std::numeric_limits<T>::max();
44    VERIFY( std::numeric_limits<T>::lowest() == -limits_max );
45  }
46
47template<typename Tp>
48  void
49  do_test()
50  { do_test<Tp>(typename std::is_integral<Tp>::type()); }
51
52void test01()
53{
54  do_test<char>();
55  do_test<signed char>();
56  do_test<unsigned char>();
57#ifdef _GLIBCXX_USE_WCHAR_T
58  do_test<wchar_t>();
59#endif
60  do_test<char16_t>();
61  do_test<char32_t>();
62
63  do_test<short>();
64  do_test<unsigned short>();
65
66  do_test<int>();
67  do_test<unsigned int>();
68
69  do_test<long>();
70  do_test<unsigned long>();
71
72  do_test<long long>();
73  do_test<unsigned long long>();
74
75  // GNU Extensions.
76#ifdef _GLIBCXX_USE_INT128
77  do_test<__int128>();
78  do_test<unsigned __int128>();
79#endif
80
81  do_test<float>();
82  do_test<double>();
83  do_test<long double>();
84}
85
86int main()
87{
88  test01();
89  return 0;
90}
91