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authorGravatar Gael Guennebaud <g.gael@free.fr>2008-04-24 18:35:39 +0000
committerGravatar Gael Guennebaud <g.gael@free.fr>2008-04-24 18:35:39 +0000
commit9385793f71f2a606b0527df8ea1d2153c3e70e11 (patch)
tree7881ba4e88218c356465609d44c6b43ab17491b1 /Eigen/src/Core/Random.h
parent6ae037dfb5b340d2d545ccbb4135b04903a2e44f (diff)
Fix a couple of issue with the vectorization. In particular, default ei_p* functions
are provided to handle not suported types seemlessly. Added a generic null-ary expression with null-ary functors. They replace Zero, Ones, Identity and Random.
Diffstat (limited to 'Eigen/src/Core/Random.h')
-rw-r--r--Eigen/src/Core/Random.h158
1 files changed, 0 insertions, 158 deletions
diff --git a/Eigen/src/Core/Random.h b/Eigen/src/Core/Random.h
deleted file mode 100644
index 4d6a21da4..000000000
--- a/Eigen/src/Core/Random.h
+++ /dev/null
@@ -1,158 +0,0 @@
-// 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_RANDOM_H
-#define EIGEN_RANDOM_H
-
-/** \class Random
- *
- * \brief Expression of a random matrix or vector.
- *
- * \sa MatrixBase::random(), MatrixBase::random(int), MatrixBase::random(int,int),
- * MatrixBase::setRandom()
- */
-template<typename MatrixType>
-struct ei_traits<Random<MatrixType> >
-{
- typedef typename ei_traits<MatrixType>::Scalar Scalar;
- enum {
- RowsAtCompileTime = ei_traits<MatrixType>::RowsAtCompileTime,
- ColsAtCompileTime = ei_traits<MatrixType>::ColsAtCompileTime,
- MaxRowsAtCompileTime = ei_traits<MatrixType>::MaxRowsAtCompileTime,
- MaxColsAtCompileTime = ei_traits<MatrixType>::MaxColsAtCompileTime,
- Flags = (ei_traits<MatrixType>::Flags | EvalBeforeNestingBit) & ~VectorizableBit,
- CoeffReadCost = 2 * NumTraits<Scalar>::MulCost // FIXME: arbitrary value
- };
-};
-
-template<typename MatrixType> class Random : ei_no_assignment_operator,
- public MatrixBase<Random<MatrixType> >
-{
- public:
-
- EIGEN_GENERIC_PUBLIC_INTERFACE(Random)
-
- private:
-
- int _rows() const { return m_rows.value(); }
- int _cols() const { return m_cols.value(); }
-
- const Scalar _coeff(int, int) const
- {
- return ei_random<Scalar>();
- }
-
- public:
-
- Random(int rows, int cols) : m_rows(rows), m_cols(cols)
- {
- ei_assert(rows > 0
- && (RowsAtCompileTime == Dynamic || RowsAtCompileTime == rows)
- && cols > 0
- && (ColsAtCompileTime == Dynamic || ColsAtCompileTime == cols));
- }
-
- protected:
- const ei_int_if_dynamic<RowsAtCompileTime> m_rows;
- const ei_int_if_dynamic<ColsAtCompileTime> m_cols;
-};
-
-/** \returns a random matrix (not an expression, the matrix is immediately evaluated).
- *
- * The parameters \a rows and \a cols are the number of rows and of columns of
- * the returned matrix. Must be compatible with this MatrixBase type.
- *
- * This variant is meant to be used for dynamic-size matrix types. For fixed-size types,
- * it is redundant to pass \a rows and \a cols as arguments, so ei_random() should be used
- * instead.
- *
- * Example: \include MatrixBase_random_int_int.cpp
- * Output: \verbinclude MatrixBase_random_int_int.out
- *
- * \sa ei_random(), ei_random(int)
- */
-template<typename Derived>
-const Random<Derived>
-MatrixBase<Derived>::random(int rows, int cols)
-{
- return Random<Derived>(rows, cols);
-}
-
-/** \returns a random vector (not an expression, the vector is immediately evaluated).
- *
- * The parameter \a size is the size of the returned vector.
- * Must be compatible with this MatrixBase type.
- *
- * \only_for_vectors
- *
- * This variant is meant to be used for dynamic-size vector types. For fixed-size types,
- * it is redundant to pass \a size as argument, so ei_random() should be used
- * instead.
- *
- * Example: \include MatrixBase_random_int.cpp
- * Output: \verbinclude MatrixBase_random_int.out
- *
- * \sa ei_random(), ei_random(int,int)
- */
-template<typename Derived>
-const Random<Derived>
-MatrixBase<Derived>::random(int size)
-{
- ei_assert(IsVectorAtCompileTime);
- if(RowsAtCompileTime == 1) return Random<Derived>(1, size);
- else return Random<Derived>(size, 1);
-}
-
-/** \returns a fixed-size random matrix or vector
- * (not an expression, the matrix is immediately evaluated).
- *
- * This variant is only for fixed-size MatrixBase types. For dynamic-size types, you
- * need to use the variants taking size arguments.
- *
- * Example: \include MatrixBase_random.cpp
- * Output: \verbinclude MatrixBase_random.out
- *
- * \sa ei_random(int), ei_random(int,int)
- */
-template<typename Derived>
-const Random<Derived>
-MatrixBase<Derived>::random()
-{
- return Random<Derived>(RowsAtCompileTime, ColsAtCompileTime);
-}
-
-/** Sets all coefficients in this expression to random values.
- *
- * Example: \include MatrixBase_setRandom.cpp
- * Output: \verbinclude MatrixBase_setRandom.out
- *
- * \sa class Random, ei_random()
- */
-template<typename Derived>
-Derived& MatrixBase<Derived>::setRandom()
-{
- return *this = Random<Derived>(rows(), cols());
-}
-
-#endif // EIGEN_RANDOM_H