Veselin Dobrev
d90a23f195
In class DenseSymmetricMatrix: * Fix a warning from -Wextra about implicit copy-ctor. * Explicitly use defaulted copy/move ctor/assignment. * A small fix in the SetSize method. * Rewrap doxygen comments to 80 chars
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
// Copyright (c) 2010-2025, Lawrence Livermore National Security, LLC. Produced
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// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
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// LICENSE and NOTICE for details. LLNL-CODE-806117.
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//
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// This file is part of the MFEM library. For more information and source code
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// availability visit https://mfem.org.
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//
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// MFEM is free software; you can redistribute it and/or modify it under the
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// terms of the BSD-3 license. We welcome feedback and contributions, see file
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// CONTRIBUTING.md for details.
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// Implementation of data type DenseSymmetricMatrix
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#include "symmat.hpp"
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namespace mfem
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{
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DenseSymmetricMatrix::DenseSymmetricMatrix() : Matrix(0) { }
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DenseSymmetricMatrix::DenseSymmetricMatrix(int s) : Matrix(s)
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{
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MFEM_ASSERT(s >= 0, "invalid DenseSymmetricMatrix size: " << s);
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if (s > 0)
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{
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data.SetSize((s*(s+1))/2);
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*this = 0.0; // init with zeroes
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}
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}
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void DenseSymmetricMatrix::SetSize(int s)
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{
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MFEM_ASSERT(s >= 0,
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"invalid DenseSymmetricMatrix size: " << s);
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if (Height() == s)
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{
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return;
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}
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height = s;
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width = s;
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data.SetSize((s*(s+1))/2);
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*this = 0.0; // init with zeroes
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}
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DenseSymmetricMatrix &DenseSymmetricMatrix::operator=(real_t c)
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{
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const int s = (Height()*(Height()+1))/2;
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for (int i = 0; i < s; i++)
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{
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data[i] = c;
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}
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return *this;
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}
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real_t &DenseSymmetricMatrix::Elem(int i, int j)
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{
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return (*this)(i,j);
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}
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const real_t &DenseSymmetricMatrix::Elem(int i, int j) const
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{
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return (*this)(i,j);
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}
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DenseSymmetricMatrix &DenseSymmetricMatrix::operator*=(real_t c)
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{
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int s = GetStoredSize();
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for (int i = 0; i < s; i++)
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{
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data[i] *= c;
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}
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return *this;
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}
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void DenseSymmetricMatrix::Mult(const Vector &x, Vector &y) const
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{
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mfem_error("DenseSymmetricMatrix::Mult() not implemented!");
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}
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MatrixInverse *DenseSymmetricMatrix::Inverse() const
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{
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mfem_error("DenseSymmetricMatrix::Inverse() not implemented!");
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return nullptr;
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}
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}
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