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94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
// { dg-add-options ieee }
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// 1999-08-23 bkoz
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// Copyright (C) 1999-2015 Free Software Foundation, Inc.
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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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struct extrema {
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static T min;
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static T max;
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};
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#define DEFINE_EXTREMA(T, m, M) \
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template<> T extrema<T>::min = m; \
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template<> T extrema<T>::max = M
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DEFINE_EXTREMA(char, CHAR_MIN, CHAR_MAX);
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DEFINE_EXTREMA(signed char, SCHAR_MIN, SCHAR_MAX);
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DEFINE_EXTREMA(unsigned char, 0, UCHAR_MAX);
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DEFINE_EXTREMA(short, SHRT_MIN, SHRT_MAX);
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DEFINE_EXTREMA(unsigned short, 0, USHRT_MAX);
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DEFINE_EXTREMA(int, INT_MIN, INT_MAX);
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DEFINE_EXTREMA(unsigned, 0U, UINT_MAX);
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DEFINE_EXTREMA(long, LONG_MIN, LONG_MAX);
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DEFINE_EXTREMA(unsigned long, 0UL, ULONG_MAX);
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#if _GLIBCXX_USE_WCHAR_T
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DEFINE_EXTREMA(wchar_t, WCHAR_MIN, WCHAR_MAX);
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#endif //_GLIBCXX_USE_WCHAR_T
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DEFINE_EXTREMA(float, FLT_MIN, FLT_MAX);
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DEFINE_EXTREMA(double, DBL_MIN, DBL_MAX);
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DEFINE_EXTREMA(long double, LDBL_MIN, LDBL_MAX);
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#undef DEFINE_EXTREMA
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template<typename T>
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void test_extrema()
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{
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bool test __attribute__((unused)) = true;
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T limits_min = std::numeric_limits<T>::min();
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T limits_max = std::numeric_limits<T>::max();
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T extrema_min = extrema<T>::min;
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T extrema_max = extrema<T>::max;
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VERIFY( extrema_min == limits_min );
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VERIFY( extrema_max == limits_max );
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}
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int main()
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{
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test_extrema<char>();
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test_extrema<signed char>();
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test_extrema<unsigned char>();
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test_extrema<short>();
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test_extrema<unsigned short>();
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test_extrema<int>();
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test_extrema<unsigned>();
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test_extrema<long>();
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test_extrema<unsigned long>();
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test_extrema<float>();
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test_extrema<double>();
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test_extrema<long double>();
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return 0;
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}
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