eigen/src/internal/Matrix.h
2007-09-28 06:10:34 +00:00

126 lines
4.3 KiB
C++

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra. Eigen itself is part of the KDE project.
//
// Copyright (C) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
//
// Eigen 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 2 or (at your option) any later version.
//
// Eigen 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 Eigen; if not, write to the Free Software Foundation, Inc., 51
// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. This exception does not invalidate any other reasons why a work
// based on this file might be covered by the GNU General Public License.
#ifndef EI_MATRIX_H
#define EI_MATRIX_H
#include "Util.h"
#include "Object.h"
#include "MatrixRef.h"
#include "MatrixStorage.h"
template<typename _Scalar, int _Rows, int _Cols>
class EiMatrix : public EiObject<_Scalar, EiMatrix<_Scalar, _Rows, _Cols> >,
public EiMatrixStorage<_Scalar, _Rows, _Cols>
{
public:
friend class EiObject<_Scalar, EiMatrix>;
typedef EiObject<_Scalar, EiMatrix> Base;
typedef EiMatrixStorage<_Scalar, _Rows, _Cols> Storage;
typedef _Scalar Scalar;
typedef EiMatrixRef<EiMatrix> Ref;
static const int RowsAtCompileTime = _Rows, ColsAtCompileTime = _Cols;
const Scalar* array() const
{ return Storage::m_array; }
Scalar* array()
{ return Storage::m_array; }
private:
Ref _ref() const { return Ref(*const_cast<EiMatrix*>(this)); }
const Scalar& _read(int row, int col = 0) const
{
EI_CHECK_RANGES(*this, row, col);
return array()[row + col * Storage::_rows()];
}
Scalar& _write(int row, int col = 0)
{
EI_CHECK_RANGES(*this, row, col);
return array()[row + col * Storage::_rows()];
}
public:
template<typename OtherDerived>
EiMatrix& operator=(const EiObject<Scalar, OtherDerived>& other)
{
resize(other.rows(), other.cols());
return Base::operator=(other);
}
EiMatrix& operator=(const EiMatrix& other)
{
resize(other.rows(), other.cols());
return Base::operator=(other);
}
EI_INHERIT_ASSIGNMENT_OPERATOR(EiMatrix, +=)
EI_INHERIT_ASSIGNMENT_OPERATOR(EiMatrix, -=)
EI_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(EiMatrix, *=)
EI_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(EiMatrix, /=)
explicit EiMatrix(int rows = 1, int cols = 1) : Storage(rows, cols) {}
template<typename OtherDerived>
EiMatrix(const EiObject<Scalar, OtherDerived>& other) : Storage(other.rows(), other.cols())
{
*this = other;
}
EiMatrix(const EiMatrix& other) : Storage(other.rows(), other.cols())
{
*this = other;
}
~EiMatrix() {}
};
#define EI_MAKE_TYPEDEFS(Type, TypeSuffix, Size, SizeSuffix) \
typedef EiMatrix<Type, Size, Size> EiMatrix##SizeSuffix##TypeSuffix; \
typedef EiMatrix<Type, Size, 1> EiVector##SizeSuffix##TypeSuffix;
#define EI_MAKE_TYPEDEFS_ALL_SIZES(Type, TypeSuffix) \
EI_MAKE_TYPEDEFS(Type, TypeSuffix, 2, 2) \
EI_MAKE_TYPEDEFS(Type, TypeSuffix, 3, 3) \
EI_MAKE_TYPEDEFS(Type, TypeSuffix, 4, 4) \
EI_MAKE_TYPEDEFS(Type, TypeSuffix, EiDynamic, X)
EI_MAKE_TYPEDEFS_ALL_SIZES(int, i)
EI_MAKE_TYPEDEFS_ALL_SIZES(float, f)
EI_MAKE_TYPEDEFS_ALL_SIZES(double, d)
EI_MAKE_TYPEDEFS_ALL_SIZES(std::complex<int>, ci)
EI_MAKE_TYPEDEFS_ALL_SIZES(std::complex<float>, cf)
EI_MAKE_TYPEDEFS_ALL_SIZES(std::complex<double>, cd)
#undef EI_MAKE_TYPEDEFS_ALL_SIZES
#undef EI_MAKE_TYPEDEFS
#include "Eval.h"
#include "MatrixOps.h"
#include "ScalarOps.h"
#include "RowAndCol.h"
#endif // EI_MATRIX_H