40 lines
1.4 KiB
C++
40 lines
1.4 KiB
C++
// Copyright (C) 2020-2024 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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//
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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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//
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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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// expensive: * [1-9] * *
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#include "bits/main.h"
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#include <cmath> // abs & sqrt
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#include <cstdlib> // integer abs
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template <typename V>
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void
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test()
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{
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if constexpr (std::is_signed_v<typename V::value_type>)
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{
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using std::abs;
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using T = typename V::value_type;
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test_values<V>({std::__finite_max_v<T>, std::__norm_min_v<T>,
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-std::__norm_min_v<T>, std::__finite_min_v<T>,
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std::__finite_min_v<T> / 2, T(), -T(), T(-1), T(-2)},
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{1000}, [](V input) {
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const V expected(
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[&](auto i) { return T(std::abs(T(input[i]))); });
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COMPARE(abs(input), expected) << "input: " << input;
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});
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}
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}
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