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e74fbfb2bc
to preserve SVN history). They are made useless by the new ei_eval_unless_lazy. - introduce a generic Eval member typedef so one can do e.g. T t; U u; Product<T, U>::Eval m; m = t*u;
245 lines
8.4 KiB
C++
245 lines
8.4 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra. Eigen itself is part of the KDE project.
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//
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// Copyright (C) 2006-2008 Benoit Jacob <jacob@math.jussieu.fr>
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//
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// Eigen is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3 of the License, or (at your option) any later version.
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//
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// Alternatively, you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License and a copy of the GNU General Public License along with
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// Eigen. If not, see <http://www.gnu.org/licenses/>.
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#ifndef EIGEN_UTIL_H
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#define EIGEN_UTIL_H
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#ifdef EIGEN_DONT_USE_UNROLLED_LOOPS
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#define EIGEN_UNROLLED_LOOPS (false)
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#else
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#define EIGEN_UNROLLED_LOOPS (true)
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#endif
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/** Defines the maximal loop size to enable meta unrolling of loops */
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#ifndef EIGEN_UNROLLING_LIMIT
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#define EIGEN_UNROLLING_LIMIT 16
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#endif
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#ifdef EIGEN_DEFAULT_TO_ROW_MAJOR
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#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER RowMajorBit
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#else
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#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER 0
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#endif
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#undef minor
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#define USING_PART_OF_NAMESPACE_EIGEN \
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EIGEN_USING_MATRIX_TYPEDEFS \
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using Eigen::Matrix; \
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using Eigen::MatrixBase;
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#ifdef NDEBUG
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#define EIGEN_NO_DEBUG
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#endif
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#ifdef EIGEN_NO_DEBUG
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#define ei_assert(x)
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#else
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#define ei_assert(x) assert(x)
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#endif
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#ifdef EIGEN_INTERNAL_DEBUGGING
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#define ei_internal_assert(x) ei_assert(x);
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#else
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#define ei_internal_assert(x)
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#endif
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#ifdef EIGEN_NO_DEBUG
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#define EIGEN_ONLY_USED_FOR_DEBUG(x) (void)x
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#else
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#define EIGEN_ONLY_USED_FOR_DEBUG(x)
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#endif
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// FIXME with the always_inline attribute,
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// gcc 3.4.x reports the following compilation error:
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// Eval.h:91: sorry, unimplemented: inlining failed in call to 'const Eigen::Eval<Derived> Eigen::MatrixBase<Scalar, Derived>::eval() const'
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// : function body not available
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#if (defined __GNUC__) && (__GNUC__!=3)
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#define EIGEN_ALWAYS_INLINE __attribute__((always_inline))
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#else
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#define EIGEN_ALWAYS_INLINE
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#endif
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#define EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, Op) \
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template<typename OtherDerived> \
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Derived& operator Op(const MatrixBase<OtherDerived>& other) \
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{ \
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return Eigen::MatrixBase<Derived>::operator Op(other); \
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} \
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Derived& operator Op(const Derived& other) \
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{ \
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return Eigen::MatrixBase<Derived>::operator Op(other); \
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}
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#define EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, Op) \
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template<typename Other> \
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Derived& operator Op(const Other& scalar) \
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{ \
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return Eigen::MatrixBase<Derived>::operator Op(scalar); \
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}
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#define EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Derived) \
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EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, =) \
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EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, +=) \
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EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, -=) \
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EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, *=) \
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EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, /=)
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#define _EIGEN_GENERIC_PUBLIC_INTERFACE(Derived, BaseClass) \
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typedef BaseClass Base; \
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typedef typename Eigen::ei_traits<Derived>::Scalar Scalar; \
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typedef typename Eigen::ei_xpr_copy<Derived>::Type XprCopy; \
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enum { RowsAtCompileTime = Base::RowsAtCompileTime, \
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ColsAtCompileTime = Base::ColsAtCompileTime, \
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MaxRowsAtCompileTime = Base::MaxRowsAtCompileTime, \
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MaxColsAtCompileTime = Base::MaxColsAtCompileTime, \
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SizeAtCompileTime = Base::SizeAtCompileTime, \
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MaxSizeAtCompileTime = Base::MaxSizeAtCompileTime, \
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IsVectorAtCompileTime = Base::IsVectorAtCompileTime, \
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Flags = Base::Flags }; \
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typedef Matrix<Scalar, \
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RowsAtCompileTime, \
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ColsAtCompileTime, \
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Flags, \
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MaxRowsAtCompileTime, \
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MaxColsAtCompileTime> Eval;
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#define EIGEN_GENERIC_PUBLIC_INTERFACE(Derived) \
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_EIGEN_GENERIC_PUBLIC_INTERFACE(Derived, Eigen::MatrixBase<Derived>) \
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friend class Eigen::MatrixBase<Derived>;
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#define EIGEN_ENUM_MIN(a,b) (((int)a <= (int)b) ? (int)a : (int)b)
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const int Dynamic = -10;
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// matrix/expression flags
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const unsigned int RowMajorBit = 0x1;
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const unsigned int LazyBit = 0x2;
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const unsigned int LargeBit = 0x4;
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enum CornerType { TopLeft, TopRight, BottomLeft, BottomRight };
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enum DirectionType { Vertical, Horizontal };
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enum ProductEvaluationMode { UnrolledDotProduct, CacheOptimal };
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// just a workaround because GCC seems to not really like empty structs
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#ifdef __GNUG__
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struct ei_empty_struct{char _ei_dummy_;};
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#define EIGEN_EMPTY_STRUCT : Eigen::ei_empty_struct
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#else
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#define EIGEN_EMPTY_STRUCT
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#endif
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//classes inheriting ei_no_assignment_operator don't generate a default operator=.
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class ei_no_assignment_operator
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{
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private:
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ei_no_assignment_operator& operator=(const ei_no_assignment_operator&);
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};
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template<int Value> class ei_int_if_dynamic EIGEN_EMPTY_STRUCT
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{
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public:
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ei_int_if_dynamic() {}
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explicit ei_int_if_dynamic(int) {}
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static int value() { return Value; }
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void setValue(int) {}
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};
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template<> class ei_int_if_dynamic<Dynamic>
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{
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int m_value;
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ei_int_if_dynamic() {}
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public:
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explicit ei_int_if_dynamic(int value) : m_value(value) {}
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int value() const { return m_value; }
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void setValue(int value) { m_value = value; }
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};
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template <bool Condition, class Then, class Else>
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struct ei_meta_if { typedef Then ret; };
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template <class Then, class Else>
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struct ei_meta_if <false, Then, Else> { typedef Else ret; };
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/** \internal
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* Convenient struct to get the result type of a unary or binary functor.
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*
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* It supports both the current STL mechanism (using the result_type member) as well as
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* upcoming next STL generation (using a templated result member).
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* If none of these members is provided, then the type of the first argument is returned.
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*/
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template<typename T> struct ei_result_of {};
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struct ei_has_none {int a[1];};
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struct ei_has_std_result_type {int a[2];};
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struct ei_has_tr1_result {int a[3];};
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template<typename Func, typename ArgType, int SizeOf=sizeof(ei_has_none)>
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struct ei_unary_result_of_select {typedef ArgType type;};
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template<typename Func, typename ArgType>
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struct ei_unary_result_of_select<Func, ArgType, sizeof(ei_has_std_result_type)> {typedef typename Func::result_type type;};
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template<typename Func, typename ArgType>
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struct ei_unary_result_of_select<Func, ArgType, sizeof(ei_has_tr1_result)> {typedef typename Func::template result<Func(ArgType)>::type type;};
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template<typename Func, typename ArgType>
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struct ei_result_of<Func(ArgType)> {
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template<typename T>
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static ei_has_std_result_type testFunctor(T const *, typename T::result_type const * = 0);
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template<typename T>
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static ei_has_tr1_result testFunctor(T const *, typename T::template result<T(ArgType)>::type const * = 0);
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static ei_has_none testFunctor(...);
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typedef typename ei_unary_result_of_select<Func, ArgType, sizeof(testFunctor(static_cast<Func*>(0)))>::type type;
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};
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template<typename Func, typename ArgType0, typename ArgType1, int SizeOf=sizeof(ei_has_none)>
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struct ei_binary_result_of_select {typedef ArgType0 type;};
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template<typename Func, typename ArgType0, typename ArgType1>
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struct ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(ei_has_std_result_type)>
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{typedef typename Func::result_type type;};
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template<typename Func, typename ArgType0, typename ArgType1>
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struct ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(ei_has_tr1_result)>
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{typedef typename Func::template result<Func(ArgType0,ArgType1)>::type type;};
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template<typename Func, typename ArgType0, typename ArgType1>
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struct ei_result_of<Func(ArgType0,ArgType1)> {
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template<typename T>
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static ei_has_std_result_type testFunctor(T const *, typename T::result_type const * = 0);
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template<typename T>
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static ei_has_tr1_result testFunctor(T const *, typename T::template result<T(ArgType0,ArgType1)>::type const * = 0);
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static ei_has_none testFunctor(...);
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typedef typename ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(testFunctor(static_cast<Func*>(0)))>::type type;
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};
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#endif // EIGEN_UTIL_H
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