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-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2009-2010 Gael Guennebaud <gael.guennebaud@inria.fr>
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-#ifndef EIGEN_REPLICATE_H
-#define EIGEN_REPLICATE_H
-
-namespace Eigen {
-
-namespace internal {
-template<typename MatrixType,int RowFactor,int ColFactor>
-struct traits<Replicate<MatrixType,RowFactor,ColFactor> >
- : traits<MatrixType>
-{
- typedef typename MatrixType::Scalar Scalar;
- typedef typename traits<MatrixType>::StorageKind StorageKind;
- typedef typename traits<MatrixType>::XprKind XprKind;
- typedef typename ref_selector<MatrixType>::type MatrixTypeNested;
- typedef typename remove_reference<MatrixTypeNested>::type _MatrixTypeNested;
- enum {
- RowsAtCompileTime = RowFactor==Dynamic || int(MatrixType::RowsAtCompileTime)==Dynamic
- ? Dynamic
- : RowFactor * MatrixType::RowsAtCompileTime,
- ColsAtCompileTime = ColFactor==Dynamic || int(MatrixType::ColsAtCompileTime)==Dynamic
- ? Dynamic
- : ColFactor * MatrixType::ColsAtCompileTime,
- //FIXME we don't propagate the max sizes !!!
- MaxRowsAtCompileTime = RowsAtCompileTime,
- MaxColsAtCompileTime = ColsAtCompileTime,
- IsRowMajor = MaxRowsAtCompileTime==1 && MaxColsAtCompileTime!=1 ? 1
- : MaxColsAtCompileTime==1 && MaxRowsAtCompileTime!=1 ? 0
- : (MatrixType::Flags & RowMajorBit) ? 1 : 0,
-
- // FIXME enable DirectAccess with negative strides?
- Flags = IsRowMajor ? RowMajorBit : 0
- };
-};
-}
-
-/**
- * \class Replicate
- * \ingroup Core_Module
- *
- * \brief Expression of the multiple replication of a matrix or vector
- *
- * \tparam MatrixType the type of the object we are replicating
- * \tparam RowFactor number of repetitions at compile time along the vertical direction, can be Dynamic.
- * \tparam ColFactor number of repetitions at compile time along the horizontal direction, can be Dynamic.
- *
- * This class represents an expression of the multiple replication of a matrix or vector.
- * It is the return type of DenseBase::replicate() and most of the time
- * this is the only way it is used.
- *
- * \sa DenseBase::replicate()
- */
-template<typename MatrixType,int RowFactor,int ColFactor> class Replicate
- : public internal::dense_xpr_base< Replicate<MatrixType,RowFactor,ColFactor> >::type
-{
- typedef typename internal::traits<Replicate>::MatrixTypeNested MatrixTypeNested;
- typedef typename internal::traits<Replicate>::_MatrixTypeNested _MatrixTypeNested;
- public:
-
- typedef typename internal::dense_xpr_base<Replicate>::type Base;
- EIGEN_DENSE_PUBLIC_INTERFACE(Replicate)
- typedef typename internal::remove_all<MatrixType>::type NestedExpression;
-
- template<typename OriginalMatrixType>
- EIGEN_DEVICE_FUNC
- inline explicit Replicate(const OriginalMatrixType& matrix)
- : m_matrix(matrix), m_rowFactor(RowFactor), m_colFactor(ColFactor)
- {
- EIGEN_STATIC_ASSERT((internal::is_same<typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
- THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
- eigen_assert(RowFactor!=Dynamic && ColFactor!=Dynamic);
- }
-
- template<typename OriginalMatrixType>
- EIGEN_DEVICE_FUNC
- inline Replicate(const OriginalMatrixType& matrix, Index rowFactor, Index colFactor)
- : m_matrix(matrix), m_rowFactor(rowFactor), m_colFactor(colFactor)
- {
- EIGEN_STATIC_ASSERT((internal::is_same<typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
- THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
- }
-
- EIGEN_DEVICE_FUNC
- inline Index rows() const { return m_matrix.rows() * m_rowFactor.value(); }
- EIGEN_DEVICE_FUNC
- inline Index cols() const { return m_matrix.cols() * m_colFactor.value(); }
-
- EIGEN_DEVICE_FUNC
- const _MatrixTypeNested& nestedExpression() const
- {
- return m_matrix;
- }
-
- protected:
- MatrixTypeNested m_matrix;
- const internal::variable_if_dynamic<Index, RowFactor> m_rowFactor;
- const internal::variable_if_dynamic<Index, ColFactor> m_colFactor;
-};
-
-/**
- * \return an expression of the replication of \c *this
- *
- * Example: \include MatrixBase_replicate.cpp
- * Output: \verbinclude MatrixBase_replicate.out
- *
- * \sa VectorwiseOp::replicate(), DenseBase::replicate(Index,Index), class Replicate
- */
-template<typename Derived>
-template<int RowFactor, int ColFactor>
-const Replicate<Derived,RowFactor,ColFactor>
-DenseBase<Derived>::replicate() const
-{
- return Replicate<Derived,RowFactor,ColFactor>(derived());
-}
-
-/**
- * \return an expression of the replication of each column (or row) of \c *this
- *
- * Example: \include DirectionWise_replicate_int.cpp
- * Output: \verbinclude DirectionWise_replicate_int.out
- *
- * \sa VectorwiseOp::replicate(), DenseBase::replicate(), class Replicate
- */
-template<typename ExpressionType, int Direction>
-const typename VectorwiseOp<ExpressionType,Direction>::ReplicateReturnType
-VectorwiseOp<ExpressionType,Direction>::replicate(Index factor) const
-{
- return typename VectorwiseOp<ExpressionType,Direction>::ReplicateReturnType
- (_expression(),Direction==Vertical?factor:1,Direction==Horizontal?factor:1);
-}
-
-} // end namespace Eigen
-
-#endif // EIGEN_REPLICATE_H