KOKO\Mimi
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
#ifndef FESA_MATH_MATRIX_H_
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#define FESA_MATH_MATRIX_H_
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#include <cstddef>
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#include <vector>
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#include "fesa/math/vector.h"
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namespace fesa {
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/// @brief Owns row-major contiguous storage independently of sparse matrices.
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class Matrix {
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public:
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/// @brief Constructs a row-major matrix initialized to one value.
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Matrix(std::size_t rows, std::size_t columns, double value = 0.0);
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/// @brief Copies matrix values into independent contiguous storage.
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Matrix(const Matrix& other);
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/// @brief Moves matrix storage and resets other to a zero-by-zero shape.
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Matrix(Matrix&& other) noexcept;
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/// @brief Copies matrix values into independent contiguous storage.
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Matrix& operator=(const Matrix& other);
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/// @brief Moves matrix storage and resets other to a zero-by-zero shape.
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Matrix& operator=(Matrix&& other) noexcept;
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/// @brief Returns the row count.
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std::size_t Rows() const noexcept;
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/// @brief Returns the column count.
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std::size_t Columns() const noexcept;
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/// @brief Returns a bounds-checked mutable entry.
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/// @throws std::out_of_range if the index is outside the matrix.
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double& operator()(std::size_t row, std::size_t column);
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/// @brief Returns a bounds-checked immutable entry.
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/// @throws std::out_of_range if the index is outside the matrix.
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const double& operator()(std::size_t row, std::size_t column) const;
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/// @brief Multiplies this row-major matrix by a dense vector.
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/// @throws std::invalid_argument if the dimensions are incompatible.
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Vector Multiply(const Vector& rhs) const;
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/// @brief Multiplies this row-major matrix by another dense matrix.
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/// @throws std::invalid_argument if the dimensions are incompatible.
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Matrix Multiply(const Matrix& rhs) const;
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private:
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std::size_t rows_;
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std::size_t columns_;
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std::vector<double> values_;
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};
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} // namespace fesa
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#endif // FESA_MATH_MATRIX_H_
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