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synced 2026-04-10 11:34:33 +08:00
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@@ -138,6 +138,9 @@ DenseBase<Derived>::NullaryExpr(Index rows, Index cols, const CustomNullaryOp& f
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*
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* The template parameter \a CustomNullaryOp is the type of the functor.
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*
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* Here is an example with C++11 random generators: \include random_cpp11.cpp
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* Output: \verbinclude random_cpp11.out
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*
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* \sa class CwiseNullaryOp
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*/
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template<typename Derived>
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@@ -77,7 +77,12 @@ template<typename MatrixType, int _DiagIndex> class Diagonal
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EIGEN_DEVICE_FUNC
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inline Index rows() const
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{ return m_index.value()<0 ? (std::min<Index>)(m_matrix.cols(),m_matrix.rows()+m_index.value()) : (std::min<Index>)(m_matrix.rows(),m_matrix.cols()-m_index.value()); }
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{
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EIGEN_USING_STD_MATH(min);
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return m_index.value()<0 ? (min)(Index(m_matrix.cols()),Index(m_matrix.rows()+m_index.value()))
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: (min)(Index(m_matrix.rows()),Index(m_matrix.cols()-m_index.value()));
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}
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EIGEN_DEVICE_FUNC
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inline Index cols() const { return 1; }
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@@ -141,36 +141,6 @@ Derived& DenseBase<Derived>::operator-=(const EigenBase<OtherDerived> &other)
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return derived();
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}
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/** replaces \c *this by \c *this * \a other.
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*
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* \returns a reference to \c *this
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*/
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template<typename Derived>
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template<typename OtherDerived>
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inline Derived&
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MatrixBase<Derived>::operator*=(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheRight(derived());
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return derived();
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}
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/** replaces \c *this by \c *this * \a other. It is equivalent to MatrixBase::operator*=().
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*/
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template<typename Derived>
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template<typename OtherDerived>
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inline void MatrixBase<Derived>::applyOnTheRight(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheRight(derived());
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}
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/** replaces \c *this by \c *this * \a other. */
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template<typename Derived>
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template<typename OtherDerived>
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inline void MatrixBase<Derived>::applyOnTheLeft(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheLeft(derived());
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}
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} // end namespace Eigen
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#endif // EIGEN_EIGENBASE_H
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@@ -575,6 +575,51 @@ template<typename Derived> class MatrixBase
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{EIGEN_STATIC_ASSERT(std::ptrdiff_t(sizeof(typename OtherDerived::Scalar))==-1,YOU_CANNOT_MIX_ARRAYS_AND_MATRICES); return *this;}
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};
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/***************************************************************************
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* Implementation of matrix base methods
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***************************************************************************/
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/** replaces \c *this by \c *this * \a other.
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*
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* \returns a reference to \c *this
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*
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* Example: \include MatrixBase_applyOnTheRight.cpp
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* Output: \verbinclude MatrixBase_applyOnTheRight.out
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*/
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template<typename Derived>
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template<typename OtherDerived>
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inline Derived&
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MatrixBase<Derived>::operator*=(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheRight(derived());
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return derived();
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}
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/** replaces \c *this by \c *this * \a other. It is equivalent to MatrixBase::operator*=().
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*
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* Example: \include MatrixBase_applyOnTheRight.cpp
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* Output: \verbinclude MatrixBase_applyOnTheRight.out
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*/
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template<typename Derived>
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template<typename OtherDerived>
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inline void MatrixBase<Derived>::applyOnTheRight(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheRight(derived());
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}
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/** replaces \c *this by \a other * \c *this.
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*
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* Example: \include MatrixBase_applyOnTheLeft.cpp
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* Output: \verbinclude MatrixBase_applyOnTheLeft.out
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*/
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template<typename Derived>
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template<typename OtherDerived>
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inline void MatrixBase<Derived>::applyOnTheLeft(const EigenBase<OtherDerived> &other)
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{
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other.derived().applyThisOnTheLeft(derived());
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}
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} // end namespace Eigen
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#endif // EIGEN_MATRIXBASE_H
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@@ -34,6 +34,8 @@ struct functor_traits<scalar_random_op<Scalar> >
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* The parameters \a rows and \a cols are the number of rows and of columns of
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* the returned matrix. Must be compatible with this MatrixBase type.
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*
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* \not_reentrant
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*
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* This variant is meant to be used for dynamic-size matrix types. For fixed-size types,
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* it is redundant to pass \a rows and \a cols as arguments, so Random() should be used
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* instead.
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@@ -45,8 +47,10 @@ struct functor_traits<scalar_random_op<Scalar> >
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* This expression has the "evaluate before nesting" flag so that it will be evaluated into
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* a temporary matrix whenever it is nested in a larger expression. This prevents unexpected
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* behavior with expressions involving random matrices.
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*
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* See DenseBase::NullaryExpr(Index, const CustomNullaryOp&) for an example using C++11 random generators.
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*
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* \sa MatrixBase::setRandom(), MatrixBase::Random(Index), MatrixBase::Random()
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* \sa DenseBase::setRandom(), DenseBase::Random(Index), DenseBase::Random()
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*/
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template<typename Derived>
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inline const CwiseNullaryOp<internal::scalar_random_op<typename internal::traits<Derived>::Scalar>, Derived>
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@@ -64,6 +68,7 @@ DenseBase<Derived>::Random(Index rows, Index cols)
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* Must be compatible with this MatrixBase type.
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*
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* \only_for_vectors
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* \not_reentrant
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*
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* This variant is meant to be used for dynamic-size vector types. For fixed-size types,
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* it is redundant to pass \a size as argument, so Random() should be used
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@@ -76,7 +81,7 @@ DenseBase<Derived>::Random(Index rows, Index cols)
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* a temporary vector whenever it is nested in a larger expression. This prevents unexpected
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* behavior with expressions involving random matrices.
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*
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* \sa MatrixBase::setRandom(), MatrixBase::Random(Index,Index), MatrixBase::Random()
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* \sa DenseBase::setRandom(), DenseBase::Random(Index,Index), DenseBase::Random()
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*/
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template<typename Derived>
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inline const CwiseNullaryOp<internal::scalar_random_op<typename internal::traits<Derived>::Scalar>, Derived>
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@@ -99,8 +104,10 @@ DenseBase<Derived>::Random(Index size)
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* This expression has the "evaluate before nesting" flag so that it will be evaluated into
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* a temporary matrix whenever it is nested in a larger expression. This prevents unexpected
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* behavior with expressions involving random matrices.
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*
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* \not_reentrant
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*
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* \sa MatrixBase::setRandom(), MatrixBase::Random(Index,Index), MatrixBase::Random(Index)
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* \sa DenseBase::setRandom(), DenseBase::Random(Index,Index), DenseBase::Random(Index)
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*/
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template<typename Derived>
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inline const CwiseNullaryOp<internal::scalar_random_op<typename internal::traits<Derived>::Scalar>, Derived>
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@@ -114,6 +121,8 @@ DenseBase<Derived>::Random()
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* Numbers are uniformly spread through their whole definition range for integer types,
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* and in the [-1:1] range for floating point scalar types.
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*
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* \not_reentrant
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*
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* Example: \include MatrixBase_setRandom.cpp
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* Output: \verbinclude MatrixBase_setRandom.out
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*
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@@ -131,11 +140,12 @@ inline Derived& DenseBase<Derived>::setRandom()
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* and in the [-1:1] range for floating point scalar types.
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*
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* \only_for_vectors
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* \not_reentrant
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*
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* Example: \include Matrix_setRandom_int.cpp
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* Output: \verbinclude Matrix_setRandom_int.out
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*
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* \sa MatrixBase::setRandom(), setRandom(Index,Index), class CwiseNullaryOp, MatrixBase::Random()
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* \sa DenseBase::setRandom(), setRandom(Index,Index), class CwiseNullaryOp, DenseBase::Random()
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*/
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template<typename Derived>
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EIGEN_STRONG_INLINE Derived&
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@@ -150,13 +160,15 @@ PlainObjectBase<Derived>::setRandom(Index newSize)
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* Numbers are uniformly spread through their whole definition range for integer types,
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* and in the [-1:1] range for floating point scalar types.
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*
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* \not_reentrant
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*
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* \param nbRows the new number of rows
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* \param nbCols the new number of columns
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*
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* Example: \include Matrix_setRandom_int_int.cpp
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* Output: \verbinclude Matrix_setRandom_int_int.out
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*
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* \sa MatrixBase::setRandom(), setRandom(Index), class CwiseNullaryOp, MatrixBase::Random()
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* \sa DenseBase::setRandom(), setRandom(Index), class CwiseNullaryOp, DenseBase::Random()
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*/
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template<typename Derived>
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EIGEN_STRONG_INLINE Derived&
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@@ -17,16 +17,29 @@ namespace internal {
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template<typename ExpressionType, typename Scalar>
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inline void stable_norm_kernel(const ExpressionType& bl, Scalar& ssq, Scalar& scale, Scalar& invScale)
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{
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Scalar max = bl.cwiseAbs().maxCoeff();
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if (max>scale)
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using std::max;
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Scalar maxCoeff = bl.cwiseAbs().maxCoeff();
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if (maxCoeff>scale)
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{
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ssq = ssq * numext::abs2(scale/max);
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scale = max;
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invScale = Scalar(1)/scale;
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ssq = ssq * numext::abs2(scale/maxCoeff);
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Scalar tmp = Scalar(1)/maxCoeff;
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if(tmp > NumTraits<Scalar>::highest())
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{
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invScale = NumTraits<Scalar>::highest();
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scale = Scalar(1)/invScale;
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}
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else
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{
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scale = maxCoeff;
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invScale = tmp;
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}
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}
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// TODO if the max is much much smaller than the current scale,
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// TODO if the maxCoeff is much much smaller than the current scale,
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// then we can neglect this sub vector
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ssq += (bl*invScale).squaredNorm();
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if(scale>Scalar(0)) // if scale==0, then bl is 0
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ssq += (bl*invScale).squaredNorm();
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}
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template<typename Derived>
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@@ -504,13 +504,18 @@ template<> EIGEN_STRONG_INLINE double predux_min<Packet2d>(const Packet2d& a)
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}
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template<> EIGEN_STRONG_INLINE int predux_min<Packet4i>(const Packet4i& a)
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{
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#ifdef EIGEN_VECTORIZE_SSE4_1
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Packet4i tmp = _mm_min_epi32(a, _mm_shuffle_epi32(a, _MM_SHUFFLE(0,0,3,2)));
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return pfirst(_mm_min_epi32(tmp,_mm_shuffle_epi32(tmp, 1)));
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#else
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// after some experiments, it is seems this is the fastest way to implement it
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// for GCC (eg., it does not like using std::min after the pstore !!)
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EIGEN_ALIGN16 int aux[4];
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pstore(aux, a);
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register int aux0 = aux[0]<aux[1] ? aux[0] : aux[1];
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register int aux2 = aux[2]<aux[3] ? aux[2] : aux[3];
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int aux0 = aux[0]<aux[1] ? aux[0] : aux[1];
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int aux2 = aux[2]<aux[3] ? aux[2] : aux[3];
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return aux0<aux2 ? aux0 : aux2;
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#endif // EIGEN_VECTORIZE_SSE4_1
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}
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// max
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@@ -525,13 +530,18 @@ template<> EIGEN_STRONG_INLINE double predux_max<Packet2d>(const Packet2d& a)
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}
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template<> EIGEN_STRONG_INLINE int predux_max<Packet4i>(const Packet4i& a)
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{
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#ifdef EIGEN_VECTORIZE_SSE4_1
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Packet4i tmp = _mm_max_epi32(a, _mm_shuffle_epi32(a, _MM_SHUFFLE(0,0,3,2)));
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return pfirst(_mm_max_epi32(tmp,_mm_shuffle_epi32(tmp, 1)));
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#else
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// after some experiments, it is seems this is the fastest way to implement it
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// for GCC (eg., it does not like using std::min after the pstore !!)
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EIGEN_ALIGN16 int aux[4];
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pstore(aux, a);
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register int aux0 = aux[0]>aux[1] ? aux[0] : aux[1];
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register int aux2 = aux[2]>aux[3] ? aux[2] : aux[3];
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int aux0 = aux[0]>aux[1] ? aux[0] : aux[1];
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int aux2 = aux[2]>aux[3] ? aux[2] : aux[3];
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return aux0>aux2 ? aux0 : aux2;
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#endif // EIGEN_VECTORIZE_SSE4_1
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}
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#if (defined __GNUC__)
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@@ -79,8 +79,8 @@ EIGEN_DONT_INLINE void selfadjoint_matrix_vector_product<Scalar,Index,StorageOrd
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for (Index j=FirstTriangular ? bound : 0;
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j<(FirstTriangular ? size : bound);j+=2)
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{
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register const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
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register const Scalar* EIGEN_RESTRICT A1 = lhs + (j+1)*lhsStride;
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const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
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const Scalar* EIGEN_RESTRICT A1 = lhs + (j+1)*lhsStride;
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Scalar t0 = cjAlpha * rhs[j];
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Packet ptmp0 = pset1<Packet>(t0);
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@@ -147,7 +147,7 @@ EIGEN_DONT_INLINE void selfadjoint_matrix_vector_product<Scalar,Index,StorageOrd
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}
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for (Index j=FirstTriangular ? 0 : bound;j<(FirstTriangular ? bound : size);j++)
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{
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register const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
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const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
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Scalar t1 = cjAlpha * rhs[j];
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Scalar t2(0);
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@@ -608,7 +608,7 @@ template<typename T> class aligned_stack_memory_handler
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*/
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#ifdef EIGEN_ALLOCA
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#ifdef __arm__
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#if defined(__arm__) || defined(_WIN32)
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#define EIGEN_ALIGNED_ALLOCA(SIZE) reinterpret_cast<void*>((reinterpret_cast<size_t>(EIGEN_ALLOCA(SIZE+16)) & ~(size_t(15))) + 16)
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#else
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#define EIGEN_ALIGNED_ALLOCA EIGEN_ALLOCA
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@@ -664,7 +664,9 @@ template<typename T> class aligned_stack_memory_handler
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/* memory allocated we can safely let the default implementation handle */ \
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/* this particular case. */ \
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static void *operator new(size_t size, void *ptr) { return ::operator new(size,ptr); } \
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static void *operator new[](size_t size, void* ptr) { return ::operator new[](size,ptr); } \
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void operator delete(void * memory, void *ptr) throw() { return ::operator delete(memory,ptr); } \
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void operator delete[](void * memory, void *ptr) throw() { return ::operator delete[](memory,ptr); } \
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/* nothrow-new (returns zero instead of std::bad_alloc) */ \
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EIGEN_MAKE_ALIGNED_OPERATOR_NEW_NOTHROW(NeedsToAlign) \
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void operator delete(void *ptr, const std::nothrow_t&) throw() { \
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@@ -759,11 +761,27 @@ public:
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::new( p ) T( value );
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}
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#if (__cplusplus >= 201103L)
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template <typename U, typename... Args>
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void construct( U* u, Args&&... args)
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{
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::new( static_cast<void*>(u) ) U( std::forward<Args>( args )... );
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}
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#endif
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void destroy( pointer p )
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{
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p->~T();
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}
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#if (__cplusplus >= 201103L)
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template <typename U>
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void destroy( U* u )
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{
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u->~U();
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}
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#endif
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void deallocate( pointer p, size_type /*num*/ )
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{
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internal::aligned_free( p );
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