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move Core/ to a src/ subdir, in preparation for following changes

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Benoit Jacob
2007-12-28 16:00:55 +00:00
parent e7bdbe2e6a
commit dfdad129a3
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Eigen/src/Core/ScalarMultiple.h Normal file
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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) 2006-2007 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 EIGEN_SCALARMULTIPLE_H
#define EIGEN_SCALARMULTIPLE_H
template<typename FactorType, typename MatrixType> class ScalarMultiple : NoOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, ScalarMultiple<FactorType, MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
typedef typename MatrixType::Ref MatRef;
friend class MatrixBase<Scalar, ScalarMultiple<FactorType, MatrixType> >;
ScalarMultiple(const MatRef& matrix, FactorType factor)
: m_matrix(matrix), m_factor(factor) {}
ScalarMultiple(const ScalarMultiple& other)
: m_matrix(other.m_matrix), m_factor(other.m_factor) {}
private:
static const int _RowsAtCompileTime = MatrixType::RowsAtCompileTime,
_ColsAtCompileTime = MatrixType::ColsAtCompileTime;
const ScalarMultiple& _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 m_factor * m_matrix.coeff(row, col);
}
protected:
const MatRef m_matrix;
const FactorType m_factor;
};
#define EIGEN_MAKE_SCALAR_OPS(FactorType) \
/** \relates MatrixBase */ \
template<typename Scalar, typename Derived> \
const ScalarMultiple<FactorType, Derived> \
operator*(const MatrixBase<Scalar, Derived>& matrix, \
FactorType scalar) \
{ \
return ScalarMultiple<FactorType, Derived>(matrix.ref(), scalar); \
} \
\
/** \relates MatrixBase */ \
template<typename Scalar, typename Derived> \
const ScalarMultiple<FactorType, Derived> \
operator*(FactorType scalar, \
const MatrixBase<Scalar, Derived>& matrix) \
{ \
return ScalarMultiple<FactorType, Derived>(matrix.ref(), scalar); \
} \
\
/** \relates MatrixBase */ \
template<typename Scalar, typename Derived> \
const ScalarMultiple<typename NumTraits<FactorType>::FloatingPoint, Derived> \
operator/(const MatrixBase<Scalar, Derived>& matrix, \
FactorType scalar) \
{ \
assert(NumTraits<Scalar>::HasFloatingPoint); \
return matrix * (static_cast< \
typename NumTraits<FactorType>::FloatingPoint \
>(1) / scalar); \
} \
\
template<typename Scalar, typename Derived> \
Derived & \
MatrixBase<Scalar, Derived>::operator*=(const FactorType &other) \
{ \
return *this = *this * other; \
} \
\
template<typename Scalar, typename Derived> \
Derived & \
MatrixBase<Scalar, Derived>::operator/=(const FactorType &other) \
{ \
return *this = *this / other; \
}
EIGEN_MAKE_SCALAR_OPS(int)
EIGEN_MAKE_SCALAR_OPS(float)
EIGEN_MAKE_SCALAR_OPS(double)
EIGEN_MAKE_SCALAR_OPS(std::complex<float>)
EIGEN_MAKE_SCALAR_OPS(std::complex<double>)
#undef EIGEN_MAKE_SCALAR_OPS
#endif // EIGEN_SCALARMULTIPLE_H