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|---|---|---|---|
| 1 | // SPDX-FileCopyrightText: 2022-2023 Dennis Gläser <dennis.glaeser@iws.uni-stuttgart.de> | ||
| 2 | // SPDX-License-Identifier: MIT | ||
| 3 | /*! | ||
| 4 | * \file | ||
| 5 | * \ingroup Common | ||
| 6 | * \copydoc GridFormat::Matrix | ||
| 7 | */ | ||
| 8 | #ifndef GRIDFORMAT_COMMON_MATRIX_HPP_ | ||
| 9 | #define GRIDFORMAT_COMMON_MATRIX_HPP_ | ||
| 10 | |||
| 11 | #include <array> | ||
| 12 | #include <ranges> | ||
| 13 | #include <utility> | ||
| 14 | |||
| 15 | #include <gridformat/common/concepts.hpp> | ||
| 16 | #include <gridformat/common/type_traits.hpp> | ||
| 17 | |||
| 18 | namespace GridFormat { | ||
| 19 | |||
| 20 | |||
| 21 | template<typename T, std::size_t rows, std::size_t cols> | ||
| 22 | class Matrix { | ||
| 23 | public: | ||
| 24 | template<Concepts::StaticallySizedMDRange<2> R> | ||
| 25 | 6630 | explicit Matrix(R&& entries) { | |
| 26 | static_assert(static_size<R> == rows); | ||
| 27 | static_assert(static_size<std::ranges::range_value_t<R>> == cols); | ||
| 28 | |||
| 29 | 6630 | int i = 0; | |
| 30 |
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24652 | std::ranges::for_each(entries, [&] (const auto& sub_range) { |
| 31 | 9217 | std::ranges::copy(sub_range, _entries[i]); | |
| 32 | 9217 | i++; | |
| 33 | }); | ||
| 34 | 6630 | } | |
| 35 | |||
| 36 | 6529 | void transpose() { | |
| 37 |
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24547 | for (std::size_t row = 0; row < rows; ++row) |
| 38 |
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34467 | for (std::size_t col = row+1; col < cols; ++col) |
| 39 | 16449 | std::swap(_entries[row][col], _entries[col][row]); | |
| 40 | 6529 | } | |
| 41 | |||
| 42 | 235 | Matrix& transposed() { | |
| 43 | 235 | transpose(); | |
| 44 | 235 | return *this; | |
| 45 | } | ||
| 46 | |||
| 47 | 6529 | auto begin() const { return std::ranges::begin(_entries); } | |
| 48 | 6529 | auto end() const { return std::ranges::end(_entries); } | |
| 49 | |||
| 50 | private: | ||
| 51 | T _entries[rows][cols]; | ||
| 52 | }; | ||
| 53 | |||
| 54 | |||
| 55 | template<Concepts::StaticallySizedMDRange<2> Range> | ||
| 56 | Matrix(Range&&) -> Matrix< | ||
| 57 | MDRangeValueType<Range>, | ||
| 58 | static_size<Range>, | ||
| 59 | static_size<std::ranges::range_value_t<Range>> | ||
| 60 | >; | ||
| 61 | |||
| 62 | } // namespace GridFormat | ||
| 63 | |||
| 64 | #endif // GRIDFORMAT_COMMON_MATRIX_HPP_ | ||
| 65 |