| // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // expensive: * [1-9] * * |
| #include "bits/verify.h" |
| #include "bits/metahelpers.h" |
| #include <cmath> // abs & sqrt |
| #include <cstdlib> // integer abs |
| #include "bits/test_values.h" |
| |
| template <typename V> |
| void |
| test() |
| { |
| if constexpr (std::is_signed_v<typename V::value_type>) |
| { |
| using std::abs; |
| using T = typename V::value_type; |
| test_values<V>({std::__finite_max_v<T>, std::__norm_min_v<T>, |
| -std::__norm_min_v<T>, std::__finite_min_v<T>, |
| std::__finite_min_v<T> / 2, T(), -T(), T(-1), T(-2)}, |
| {1000}, [](V input) { |
| const V expected( |
| [&](auto i) { return T(std::abs(T(input[i]))); }); |
| COMPARE(abs(input), expected) << "input: " << input; |
| }); |
| } |
| } |
