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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/18_support/numeric_limits/is_iec559.cc
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1 // { dg-add-options ieee }
5 // Copyright (C) 1999-2020 Free Software Foundation, Inc.
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)
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.
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/>.
22 // 18.2.1.1 template class numeric_limits
28 #include <testsuite_hooks.h>
36 if (std::numeric_limits
<T
>::is_iec559
)
38 // IEC 559 requires all of the following.
39 test
= (std::numeric_limits
<T
>::has_infinity
40 && std::numeric_limits
<T
>::has_quiet_NaN
41 && std::numeric_limits
<T
>::has_signaling_NaN
);
45 // If we had all of the following, why didn't we set IEC 559?
46 test
= (!std::numeric_limits
<T
>::has_infinity
47 || !std::numeric_limits
<T
>::has_quiet_NaN
48 || !std::numeric_limits
<T
>::has_signaling_NaN
);
57 VERIFY( !std::numeric_limits
<short>::is_iec559
);
58 VERIFY( !std::numeric_limits
<unsigned short>::is_iec559
);
59 VERIFY( !std::numeric_limits
<int>::is_iec559
);
60 VERIFY( !std::numeric_limits
<unsigned int>::is_iec559
);
61 VERIFY( !std::numeric_limits
<long>::is_iec559
);
62 VERIFY( !std::numeric_limits
<unsigned long>::is_iec559
);
63 VERIFY( !std::numeric_limits
<long long>::is_iec559
);
64 VERIFY( !std::numeric_limits
<unsigned long long>::is_iec559
);
69 test_is_iec559
<float>();
70 test_is_iec559
<double>();
71 test_is_iec559
<long double>();