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authorGravatar Gael Guennebaud <g.gael@free.fr>2008-03-03 10:52:44 +0000
committerGravatar Gael Guennebaud <g.gael@free.fr>2008-03-03 10:52:44 +0000
commit255689231d4267d8a254fef5b59162d92c3cab4d (patch)
tree6c25e2c7c104313b34d23cb5a8076c40eb834709 /Eigen/src/Core/Conjugate.h
parented20f64d6810158f9a75d4dfe5d59586f58ac563 (diff)
* Added generic unary operators (replace Opposite and Conjugate)
* functor templates are not template template parameter anymore (this allows to make templated functors !) * Main page: extented compiler discussion * A small hack to support gcc 3.4 and 4.0 (see the main page) * Fix a cast type issue in Cast * Various doxygen updates (mainly Cwise stuff and added doxygen groups in MatrixBase to split the huge memeber list, still not perfect though) * Updated Gael's email address
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-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra. Eigen itself is part of the KDE project.
-//
-// Copyright (C) 2006-2008 Benoit Jacob <jacob@math.jussieu.fr>
-//
-// Eigen is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 3 of the License, or (at your option) any later version.
-//
-// Alternatively, 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 of
-// the License, 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 Lesser General Public License or the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License and a copy of the GNU General Public License along with
-// Eigen. If not, see <http://www.gnu.org/licenses/>.
-
-#ifndef EIGEN_CONJUGATE_H
-#define EIGEN_CONJUGATE_H
-
-/** \class Conjugate
- *
- * \brief Expression of the complex conjugate of a matrix
- *
- * \param MatrixType the type of the object of which we are taking the complex conjugate
- *
- * This class represents an expression of the complex conjugate of a matrix.
- * It is the return type of MatrixBase::conjugate() and is also used by
- * MatrixBase::adjoint() and most of the time these are the only ways it is used.
- *
- * \sa MatrixBase::conjugate(), MatrixBase::adjoint()
- */
-template<typename MatrixType> class Conjugate : NoOperatorEquals,
- public MatrixBase<typename MatrixType::Scalar, Conjugate<MatrixType> >
-{
- public:
- typedef typename MatrixType::Scalar Scalar;
- typedef typename MatrixType::Ref MatRef;
- friend class MatrixBase<Scalar, Conjugate>;
- typedef MatrixBase<Scalar, Conjugate> Base;
-
- Conjugate(const MatRef& matrix) : m_matrix(matrix) {}
-
- private:
- enum {
- RowsAtCompileTime = MatrixType::Traits::RowsAtCompileTime,
- ColsAtCompileTime = MatrixType::Traits::ColsAtCompileTime,
- MaxRowsAtCompileTime = MatrixType::Traits::MaxRowsAtCompileTime,
- MaxColsAtCompileTime = MatrixType::Traits::MaxColsAtCompileTime
- };
-
- const Conjugate& _ref() const { return *this; }
- int _rows() const { return m_matrix.rows(); }
- int _cols() const { return m_matrix.cols(); }
-
- Scalar _coeff(int row, int col) const
- {
- return ei_conj(m_matrix.coeff(row, col));
- }
-
- protected:
- const MatRef m_matrix;
-};
-
-/** \returns an expression of the complex conjugate of *this.
- *
- * \sa adjoint(), class Conjugate */
-template<typename Scalar, typename Derived>
-const Conjugate<Derived>
-MatrixBase<Scalar, Derived>::conjugate() const
-{
- return Conjugate<Derived>(ref());
-}
-
-/** \returns an expression of the adjoint (i.e. conjugate transpose) of *this.
- *
- * Example: \include MatrixBase_adjoint.cpp
- * Output: \verbinclude MatrixBase_adjoint.out
- *
- * \sa transpose(), conjugate(), class Transpose, class Conjugate */
-template<typename Scalar, typename Derived>
-const Transpose<Conjugate<Derived> >
-MatrixBase<Scalar, Derived>::adjoint() const
-{
- return conjugate().transpose();
-}
-
-#endif // EIGEN_CONJUGATE_H