mirror of
https://gitlab.com/libeigen/eigen.git
synced 2025-05-06 02:34:05 +08:00
138aad0ed0
- compatible with current STL's functors as well as with the extention proposal (TR1) * thanks to the above, Cast and ScalarMultiple have been removed * benchmark_suite is more flexible (compiler and matrix size)
205 lines
7.1 KiB
C++
205 lines
7.1 KiB
C++
// 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_UTIL_H
|
|
#define EIGEN_UTIL_H
|
|
|
|
#ifdef EIGEN_DONT_USE_UNROLLED_LOOPS
|
|
#define EIGEN_UNROLLED_LOOPS (false)
|
|
#else
|
|
#define EIGEN_UNROLLED_LOOPS (true)
|
|
#endif
|
|
|
|
/** Defines the maximal loop size (i.e., the matrix size NxM) to enable
|
|
* meta unrolling of operator=.
|
|
*/
|
|
#ifndef EIGEN_UNROLLING_LIMIT_OPEQUAL
|
|
#define EIGEN_UNROLLING_LIMIT_OPEQUAL 25
|
|
#endif
|
|
|
|
/** Defines the maximal loop size to enable meta unrolling
|
|
* of the matrix product, dot product and trace.
|
|
*/
|
|
#ifndef EIGEN_UNROLLING_LIMIT_PRODUCT
|
|
#define EIGEN_UNROLLING_LIMIT_PRODUCT 16
|
|
#endif
|
|
|
|
#ifdef EIGEN_DEFAULT_TO_ROW_MAJOR
|
|
#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER RowMajor
|
|
#else
|
|
#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER ColumnMajor
|
|
#endif
|
|
|
|
#undef minor
|
|
|
|
#define USING_PART_OF_NAMESPACE_EIGEN \
|
|
EIGEN_USING_MATRIX_TYPEDEFS \
|
|
using Eigen::Matrix; \
|
|
using Eigen::MatrixBase;
|
|
|
|
#ifdef EIGEN_INTERNAL_DEBUGGING
|
|
#define eigen_internal_assert(x) assert(x);
|
|
#else
|
|
#define eigen_internal_assert(x)
|
|
#endif
|
|
|
|
#ifdef NDEBUG
|
|
#define EIGEN_ONLY_USED_FOR_DEBUG(x) (void)x
|
|
#else
|
|
#define EIGEN_ONLY_USED_FOR_DEBUG(x)
|
|
#endif
|
|
|
|
// FIXME with the always_inline attribute,
|
|
// gcc 3.4.x reports the following compilation error:
|
|
// Eval.h:91: sorry, unimplemented: inlining failed in call to 'const Eigen::Eval<Derived> Eigen::MatrixBase<Scalar, Derived>::eval() const'
|
|
// : function body not available
|
|
#if (defined __GNUC__) && (__GNUC__!=3)
|
|
#define EIGEN_ALWAYS_INLINE __attribute__((always_inline))
|
|
#else
|
|
#define EIGEN_ALWAYS_INLINE
|
|
#endif
|
|
|
|
#define EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, Op) \
|
|
template<typename OtherScalar, typename OtherDerived> \
|
|
Derived& operator Op(const MatrixBase<OtherScalar, OtherDerived>& other) \
|
|
{ \
|
|
return Base::operator Op(other); \
|
|
} \
|
|
Derived& operator Op(const Derived& other) \
|
|
{ \
|
|
return Base::operator Op(other); \
|
|
}
|
|
|
|
#define EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, Op) \
|
|
template<typename Other> \
|
|
Derived& operator Op(const Other& scalar) \
|
|
{ \
|
|
return Base::operator Op(scalar); \
|
|
}
|
|
|
|
#define EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Derived) \
|
|
EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, =) \
|
|
EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, +=) \
|
|
EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, -=) \
|
|
EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, *=) \
|
|
EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, /=)
|
|
|
|
#define EIGEN_ENUM_MIN(a,b) (((int)a <= (int)b) ? (int)a : (int)b)
|
|
|
|
const int Dynamic = -10;
|
|
const int ColumnMajor = 0;
|
|
const int RowMajor = 1;
|
|
|
|
enum CornerType { TopLeft, TopRight, BottomLeft, BottomRight };
|
|
|
|
// just a workaround because GCC seems to not really like empty structs
|
|
#ifdef __GNUG__
|
|
struct EiEmptyStruct{char _ei_dummy_;};
|
|
#define EIGEN_EMPTY_STRUCT : Eigen::EiEmptyStruct
|
|
#else
|
|
#define EIGEN_EMPTY_STRUCT
|
|
#endif
|
|
|
|
//classes inheriting NoOperatorEquals don't generate a default operator=.
|
|
class NoOperatorEquals
|
|
{
|
|
private:
|
|
NoOperatorEquals& operator=(const NoOperatorEquals&);
|
|
};
|
|
|
|
template<int Value> class IntAtRunTimeIfDynamic EIGEN_EMPTY_STRUCT
|
|
{
|
|
public:
|
|
IntAtRunTimeIfDynamic() {}
|
|
explicit IntAtRunTimeIfDynamic(int) {}
|
|
static int value() { return Value; }
|
|
void setValue(int) {}
|
|
};
|
|
|
|
template<> class IntAtRunTimeIfDynamic<Dynamic>
|
|
{
|
|
int m_value;
|
|
IntAtRunTimeIfDynamic() {}
|
|
public:
|
|
explicit IntAtRunTimeIfDynamic(int value) : m_value(value) {}
|
|
int value() const { return m_value; }
|
|
void setValue(int value) { m_value = value; }
|
|
};
|
|
|
|
struct ei_has_nothing {int a[1];};
|
|
struct ei_has_std_result_type {int a[2];};
|
|
struct ei_has_tr1_result {int a[3];};
|
|
|
|
/** Convenient struct to get the result type of a unary or binary functor.
|
|
*
|
|
* It supports both the current STL mechanism (using the result_type member) as well as
|
|
* upcoming next STL generation (using a templated result member).
|
|
* If none of these member is provided, then the type of the first argument is returned.
|
|
*/
|
|
template<typename T> struct ei_result_of {};
|
|
|
|
template<typename Func, typename ArgType, int SizeOf=sizeof(ei_has_nothing)>
|
|
struct ei_unary_result_of_select {typedef ArgType type;};
|
|
|
|
template<typename Func, typename ArgType>
|
|
struct ei_unary_result_of_select<Func, ArgType, sizeof(ei_has_std_result_type)> {typedef typename Func::result_type type;};
|
|
|
|
template<typename Func, typename ArgType>
|
|
struct ei_unary_result_of_select<Func, ArgType, sizeof(ei_has_tr1_result)> {typedef typename Func::template result<Func(ArgType)>::type type;};
|
|
|
|
template<typename Func, typename ArgType>
|
|
struct ei_result_of<Func(ArgType)> {
|
|
template<typename T>
|
|
static ei_has_std_result_type testFunctor(T const *, typename T::result_type const * = 0);
|
|
template<typename T>
|
|
static ei_has_tr1_result testFunctor(T const *, typename T::template result<T(ArgType)>::type const * = 0);
|
|
static ei_has_nothing testFunctor(...);
|
|
|
|
typedef typename ei_unary_result_of_select<Func, ArgType, sizeof(testFunctor(static_cast<Func*>(0)))>::type type;
|
|
};
|
|
|
|
template<typename Func, typename ArgType0, typename ArgType1, int SizeOf=sizeof(ei_has_nothing)>
|
|
struct ei_binary_result_of_select {typedef ArgType0 type;};
|
|
|
|
template<typename Func, typename ArgType0, typename ArgType1>
|
|
struct ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(ei_has_std_result_type)>
|
|
{typedef typename Func::result_type type;};
|
|
|
|
template<typename Func, typename ArgType0, typename ArgType1>
|
|
struct ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(ei_has_tr1_result)>
|
|
{typedef typename Func::template result<Func(ArgType0,ArgType1)>::type type;};
|
|
|
|
template<typename Func, typename ArgType0, typename ArgType1>
|
|
struct ei_result_of<Func(ArgType0,ArgType1)> {
|
|
template<typename T>
|
|
static ei_has_std_result_type testFunctor(T const *, typename T::result_type const * = 0);
|
|
template<typename T>
|
|
static ei_has_tr1_result testFunctor(T const *, typename T::template result<T(ArgType0,ArgType1)>::type const * = 0);
|
|
static ei_has_nothing testFunctor(...);
|
|
|
|
typedef typename ei_binary_result_of_select<Func, ArgType0, ArgType1, sizeof(testFunctor(static_cast<Func*>(0)))>::type type;
|
|
};
|
|
|
|
#endif // EIGEN_UTIL_H
|