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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/18_support/numeric_limits/lowest.cc
1 // { dg-do run { target c++11 } }
2 // { dg-add-options ieee }
4 // 2010-02-25 Ed Smith-Rowland
6 // Copyright (C) 2010-2017 Free Software Foundation, Inc.
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)
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.
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/>.
23 // 18.2.1.1 template class numeric_limits
26 #include <type_traits>
27 #include <testsuite_hooks.h>
31 do_test(std::true_type
)
33 T limits_min
= std::numeric_limits
<T
>::min();
34 VERIFY( std::numeric_limits
<T
>::lowest() == limits_min
);
39 do_test(std::false_type
)
41 T limits_max
= std::numeric_limits
<T
>::max();
42 VERIFY( std::numeric_limits
<T
>::lowest() == -limits_max
);
48 { do_test
<Tp
>(typename
std::is_integral
<Tp
>::type()); }
53 do_test
<signed char>();
54 do_test
<unsigned char>();
55 #ifdef _GLIBCXX_USE_WCHAR_T
62 do_test
<unsigned short>();
65 do_test
<unsigned int>();
68 do_test
<unsigned long>();
71 do_test
<unsigned long long>();
74 #ifdef _GLIBCXX_USE_INT128
76 do_test
<unsigned __int128
>();
81 do_test
<long double>();