feat(cpp-object-oriented-modular-refactoring): step 3 - foundation-google-style

include/fesa/solvers/linear/mkl_pardiso_solver.h

@@ -0,0 +1,32 @@
+#ifndef FESA_SOLVERS_LINEAR_MKL_PARDISO_SOLVER_H_
+#define FESA_SOLVERS_LINEAR_MKL_PARDISO_SOLVER_H_
+
+#include <memory>
+
+#include "fesa/solvers/linear/linear_solver.h"
+
+namespace fesa {
+
+/// @brief Adapts retained oneMKL PARDISO state behind LinearSolver.
+class MklPardisoSolver final : public LinearSolver {
+ public:
+  /// @brief Constructs an empty, unfactorized PARDISO adapter.
+  MklPardisoSolver();
+
+  /// @brief Releases retained PARDISO backend state.
+  ~MklPardisoSolver() override;
+
+  /// @brief Validates and factorizes a symmetric free-equation matrix.
+  Status Factorize(const SparseMatrix& matrix) override;
+
+  /// @brief Substitutes one right-hand side without refactorization.
+  Status Solve(const Vector& rhs, Vector& solution) const override;
+
+ private:
+  class Impl;
+  std::unique_ptr<Impl> impl_;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_SOLVERS_LINEAR_MKL_PARDISO_SOLVER_H_