80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
// { dg-add-options ieee }
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// 1999-08-23 bkoz
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// Copyright (C) 1999, 2001, 2002, 2003, 2004, 2009 Free Software Foundation
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 18.2.1.1 template class numeric_limits
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#include <limits>
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#include <limits.h>
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#include <float.h>
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#include <cwchar>
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#include <testsuite_hooks.h>
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template<typename T>
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void
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test_is_iec559()
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{
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bool test;
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if (std::numeric_limits<T>::is_iec559)
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{
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// IEC 559 requires all of the following.
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test = (std::numeric_limits<T>::has_infinity
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&& std::numeric_limits<T>::has_quiet_NaN
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&& std::numeric_limits<T>::has_signaling_NaN);
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}
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else
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{
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// If we had all of the following, why didn't we set IEC 559?
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test = (!std::numeric_limits<T>::has_infinity
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|| !std::numeric_limits<T>::has_quiet_NaN
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|| !std::numeric_limits<T>::has_signaling_NaN);
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}
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VERIFY (test);
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}
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// libstdc++/8949
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bool test04()
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{
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bool test __attribute__((unused)) = true;
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VERIFY( !std::numeric_limits<short>::is_iec559 );
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VERIFY( !std::numeric_limits<unsigned short>::is_iec559 );
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VERIFY( !std::numeric_limits<int>::is_iec559 );
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VERIFY( !std::numeric_limits<unsigned int>::is_iec559 );
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VERIFY( !std::numeric_limits<long>::is_iec559 );
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VERIFY( !std::numeric_limits<unsigned long>::is_iec559 );
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VERIFY( !std::numeric_limits<long long>::is_iec559 );
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VERIFY( !std::numeric_limits<unsigned long long>::is_iec559 );
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return test;
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}
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int main()
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{
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test_is_iec559<float>();
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test_is_iec559<double>();
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test_is_iec559<long double>();
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test04();
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return 0;
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}
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