1 | // This file is part of Eigen, a lightweight C++ template library
|
---|
2 | // for linear algebra.
|
---|
3 | //
|
---|
4 | // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
|
---|
5 | // Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com>
|
---|
6 | //
|
---|
7 | // This Source Code Form is subject to the terms of the Mozilla
|
---|
8 | // Public License v. 2.0. If a copy of the MPL was not distributed
|
---|
9 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
---|
10 |
|
---|
11 | #ifndef EIGEN_BLOCK_H
|
---|
12 | #define EIGEN_BLOCK_H
|
---|
13 |
|
---|
14 | namespace Eigen {
|
---|
15 |
|
---|
16 | /** \class Block
|
---|
17 | * \ingroup Core_Module
|
---|
18 | *
|
---|
19 | * \brief Expression of a fixed-size or dynamic-size block
|
---|
20 | *
|
---|
21 | * \param XprType the type of the expression in which we are taking a block
|
---|
22 | * \param BlockRows the number of rows of the block we are taking at compile time (optional)
|
---|
23 | * \param BlockCols the number of columns of the block we are taking at compile time (optional)
|
---|
24 | *
|
---|
25 | * This class represents an expression of either a fixed-size or dynamic-size block. It is the return
|
---|
26 | * type of DenseBase::block(Index,Index,Index,Index) and DenseBase::block<int,int>(Index,Index) and
|
---|
27 | * most of the time this is the only way it is used.
|
---|
28 | *
|
---|
29 | * However, if you want to directly maniputate block expressions,
|
---|
30 | * for instance if you want to write a function returning such an expression, you
|
---|
31 | * will need to use this class.
|
---|
32 | *
|
---|
33 | * Here is an example illustrating the dynamic case:
|
---|
34 | * \include class_Block.cpp
|
---|
35 | * Output: \verbinclude class_Block.out
|
---|
36 | *
|
---|
37 | * \note Even though this expression has dynamic size, in the case where \a XprType
|
---|
38 | * has fixed size, this expression inherits a fixed maximal size which means that evaluating
|
---|
39 | * it does not cause a dynamic memory allocation.
|
---|
40 | *
|
---|
41 | * Here is an example illustrating the fixed-size case:
|
---|
42 | * \include class_FixedBlock.cpp
|
---|
43 | * Output: \verbinclude class_FixedBlock.out
|
---|
44 | *
|
---|
45 | * \sa DenseBase::block(Index,Index,Index,Index), DenseBase::block(Index,Index), class VectorBlock
|
---|
46 | */
|
---|
47 |
|
---|
48 | namespace internal {
|
---|
49 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel>
|
---|
50 | struct traits<Block<XprType, BlockRows, BlockCols, InnerPanel> > : traits<XprType>
|
---|
51 | {
|
---|
52 | typedef typename traits<XprType>::Scalar Scalar;
|
---|
53 | typedef typename traits<XprType>::StorageKind StorageKind;
|
---|
54 | typedef typename traits<XprType>::XprKind XprKind;
|
---|
55 | typedef typename nested<XprType>::type XprTypeNested;
|
---|
56 | typedef typename remove_reference<XprTypeNested>::type _XprTypeNested;
|
---|
57 | enum{
|
---|
58 | MatrixRows = traits<XprType>::RowsAtCompileTime,
|
---|
59 | MatrixCols = traits<XprType>::ColsAtCompileTime,
|
---|
60 | RowsAtCompileTime = MatrixRows == 0 ? 0 : BlockRows,
|
---|
61 | ColsAtCompileTime = MatrixCols == 0 ? 0 : BlockCols,
|
---|
62 | MaxRowsAtCompileTime = BlockRows==0 ? 0
|
---|
63 | : RowsAtCompileTime != Dynamic ? int(RowsAtCompileTime)
|
---|
64 | : int(traits<XprType>::MaxRowsAtCompileTime),
|
---|
65 | MaxColsAtCompileTime = BlockCols==0 ? 0
|
---|
66 | : ColsAtCompileTime != Dynamic ? int(ColsAtCompileTime)
|
---|
67 | : int(traits<XprType>::MaxColsAtCompileTime),
|
---|
68 | XprTypeIsRowMajor = (int(traits<XprType>::Flags)&RowMajorBit) != 0,
|
---|
69 | IsDense = is_same<StorageKind,Dense>::value,
|
---|
70 | IsRowMajor = (IsDense&&MaxRowsAtCompileTime==1&&MaxColsAtCompileTime!=1) ? 1
|
---|
71 | : (IsDense&&MaxColsAtCompileTime==1&&MaxRowsAtCompileTime!=1) ? 0
|
---|
72 | : XprTypeIsRowMajor,
|
---|
73 | HasSameStorageOrderAsXprType = (IsRowMajor == XprTypeIsRowMajor),
|
---|
74 | InnerSize = IsRowMajor ? int(ColsAtCompileTime) : int(RowsAtCompileTime),
|
---|
75 | InnerStrideAtCompileTime = HasSameStorageOrderAsXprType
|
---|
76 | ? int(inner_stride_at_compile_time<XprType>::ret)
|
---|
77 | : int(outer_stride_at_compile_time<XprType>::ret),
|
---|
78 | OuterStrideAtCompileTime = HasSameStorageOrderAsXprType
|
---|
79 | ? int(outer_stride_at_compile_time<XprType>::ret)
|
---|
80 | : int(inner_stride_at_compile_time<XprType>::ret),
|
---|
81 | MaskPacketAccessBit = (InnerSize == Dynamic || (InnerSize % packet_traits<Scalar>::size) == 0)
|
---|
82 | && (InnerStrideAtCompileTime == 1)
|
---|
83 | ? PacketAccessBit : 0,
|
---|
84 | MaskAlignedBit = (InnerPanel && (OuterStrideAtCompileTime!=Dynamic) && (((OuterStrideAtCompileTime * int(sizeof(Scalar))) % 16) == 0)) ? AlignedBit : 0,
|
---|
85 | FlagsLinearAccessBit = (RowsAtCompileTime == 1 || ColsAtCompileTime == 1 || (InnerPanel && (traits<XprType>::Flags&LinearAccessBit))) ? LinearAccessBit : 0,
|
---|
86 | FlagsLvalueBit = is_lvalue<XprType>::value ? LvalueBit : 0,
|
---|
87 | FlagsRowMajorBit = IsRowMajor ? RowMajorBit : 0,
|
---|
88 | Flags0 = traits<XprType>::Flags & ( (HereditaryBits & ~RowMajorBit) |
|
---|
89 | DirectAccessBit |
|
---|
90 | MaskPacketAccessBit |
|
---|
91 | MaskAlignedBit),
|
---|
92 | Flags = Flags0 | FlagsLinearAccessBit | FlagsLvalueBit | FlagsRowMajorBit
|
---|
93 | };
|
---|
94 | };
|
---|
95 |
|
---|
96 | template<typename XprType, int BlockRows=Dynamic, int BlockCols=Dynamic, bool InnerPanel = false,
|
---|
97 | bool HasDirectAccess = internal::has_direct_access<XprType>::ret> class BlockImpl_dense;
|
---|
98 |
|
---|
99 | } // end namespace internal
|
---|
100 |
|
---|
101 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel, typename StorageKind> class BlockImpl;
|
---|
102 |
|
---|
103 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel> class Block
|
---|
104 | : public BlockImpl<XprType, BlockRows, BlockCols, InnerPanel, typename internal::traits<XprType>::StorageKind>
|
---|
105 | {
|
---|
106 | typedef BlockImpl<XprType, BlockRows, BlockCols, InnerPanel, typename internal::traits<XprType>::StorageKind> Impl;
|
---|
107 | public:
|
---|
108 | //typedef typename Impl::Base Base;
|
---|
109 | typedef Impl Base;
|
---|
110 | EIGEN_GENERIC_PUBLIC_INTERFACE(Block)
|
---|
111 | EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Block)
|
---|
112 |
|
---|
113 | /** Column or Row constructor
|
---|
114 | */
|
---|
115 | inline Block(XprType& xpr, Index i) : Impl(xpr,i)
|
---|
116 | {
|
---|
117 | eigen_assert( (i>=0) && (
|
---|
118 | ((BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) && i<xpr.rows())
|
---|
119 | ||((BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) && i<xpr.cols())));
|
---|
120 | }
|
---|
121 |
|
---|
122 | /** Fixed-size constructor
|
---|
123 | */
|
---|
124 | inline Block(XprType& xpr, Index a_startRow, Index a_startCol)
|
---|
125 | : Impl(xpr, a_startRow, a_startCol)
|
---|
126 | {
|
---|
127 | EIGEN_STATIC_ASSERT(RowsAtCompileTime!=Dynamic && ColsAtCompileTime!=Dynamic,THIS_METHOD_IS_ONLY_FOR_FIXED_SIZE)
|
---|
128 | eigen_assert(a_startRow >= 0 && BlockRows >= 1 && a_startRow + BlockRows <= xpr.rows()
|
---|
129 | && a_startCol >= 0 && BlockCols >= 1 && a_startCol + BlockCols <= xpr.cols());
|
---|
130 | }
|
---|
131 |
|
---|
132 | /** Dynamic-size constructor
|
---|
133 | */
|
---|
134 | inline Block(XprType& xpr,
|
---|
135 | Index a_startRow, Index a_startCol,
|
---|
136 | Index blockRows, Index blockCols)
|
---|
137 | : Impl(xpr, a_startRow, a_startCol, blockRows, blockCols)
|
---|
138 | {
|
---|
139 | eigen_assert((RowsAtCompileTime==Dynamic || RowsAtCompileTime==blockRows)
|
---|
140 | && (ColsAtCompileTime==Dynamic || ColsAtCompileTime==blockCols));
|
---|
141 | eigen_assert(a_startRow >= 0 && blockRows >= 0 && a_startRow <= xpr.rows() - blockRows
|
---|
142 | && a_startCol >= 0 && blockCols >= 0 && a_startCol <= xpr.cols() - blockCols);
|
---|
143 | }
|
---|
144 | };
|
---|
145 |
|
---|
146 | // The generic default implementation for dense block simplu forward to the internal::BlockImpl_dense
|
---|
147 | // that must be specialized for direct and non-direct access...
|
---|
148 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel>
|
---|
149 | class BlockImpl<XprType, BlockRows, BlockCols, InnerPanel, Dense>
|
---|
150 | : public internal::BlockImpl_dense<XprType, BlockRows, BlockCols, InnerPanel>
|
---|
151 | {
|
---|
152 | typedef internal::BlockImpl_dense<XprType, BlockRows, BlockCols, InnerPanel> Impl;
|
---|
153 | typedef typename XprType::Index Index;
|
---|
154 | public:
|
---|
155 | typedef Impl Base;
|
---|
156 | EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl)
|
---|
157 | inline BlockImpl(XprType& xpr, Index i) : Impl(xpr,i) {}
|
---|
158 | inline BlockImpl(XprType& xpr, Index a_startRow, Index a_startCol) : Impl(xpr, a_startRow, a_startCol) {}
|
---|
159 | inline BlockImpl(XprType& xpr, Index a_startRow, Index a_startCol, Index blockRows, Index blockCols)
|
---|
160 | : Impl(xpr, a_startRow, a_startCol, blockRows, blockCols) {}
|
---|
161 | };
|
---|
162 |
|
---|
163 | namespace internal {
|
---|
164 |
|
---|
165 | /** \internal Internal implementation of dense Blocks in the general case. */
|
---|
166 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel, bool HasDirectAccess> class BlockImpl_dense
|
---|
167 | : public internal::dense_xpr_base<Block<XprType, BlockRows, BlockCols, InnerPanel> >::type
|
---|
168 | {
|
---|
169 | typedef Block<XprType, BlockRows, BlockCols, InnerPanel> BlockType;
|
---|
170 | public:
|
---|
171 |
|
---|
172 | typedef typename internal::dense_xpr_base<BlockType>::type Base;
|
---|
173 | EIGEN_DENSE_PUBLIC_INTERFACE(BlockType)
|
---|
174 | EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl_dense)
|
---|
175 |
|
---|
176 | class InnerIterator;
|
---|
177 |
|
---|
178 | /** Column or Row constructor
|
---|
179 | */
|
---|
180 | inline BlockImpl_dense(XprType& xpr, Index i)
|
---|
181 | : m_xpr(xpr),
|
---|
182 | // It is a row if and only if BlockRows==1 and BlockCols==XprType::ColsAtCompileTime,
|
---|
183 | // and it is a column if and only if BlockRows==XprType::RowsAtCompileTime and BlockCols==1,
|
---|
184 | // all other cases are invalid.
|
---|
185 | // The case a 1x1 matrix seems ambiguous, but the result is the same anyway.
|
---|
186 | m_startRow( (BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) ? i : 0),
|
---|
187 | m_startCol( (BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) ? i : 0),
|
---|
188 | m_blockRows(BlockRows==1 ? 1 : xpr.rows()),
|
---|
189 | m_blockCols(BlockCols==1 ? 1 : xpr.cols())
|
---|
190 | {}
|
---|
191 |
|
---|
192 | /** Fixed-size constructor
|
---|
193 | */
|
---|
194 | inline BlockImpl_dense(XprType& xpr, Index a_startRow, Index a_startCol)
|
---|
195 | : m_xpr(xpr), m_startRow(a_startRow), m_startCol(a_startCol),
|
---|
196 | m_blockRows(BlockRows), m_blockCols(BlockCols)
|
---|
197 | {}
|
---|
198 |
|
---|
199 | /** Dynamic-size constructor
|
---|
200 | */
|
---|
201 | inline BlockImpl_dense(XprType& xpr,
|
---|
202 | Index a_startRow, Index a_startCol,
|
---|
203 | Index blockRows, Index blockCols)
|
---|
204 | : m_xpr(xpr), m_startRow(a_startRow), m_startCol(a_startCol),
|
---|
205 | m_blockRows(blockRows), m_blockCols(blockCols)
|
---|
206 | {}
|
---|
207 |
|
---|
208 | inline Index rows() const { return m_blockRows.value(); }
|
---|
209 | inline Index cols() const { return m_blockCols.value(); }
|
---|
210 |
|
---|
211 | inline Scalar& coeffRef(Index rowId, Index colId)
|
---|
212 | {
|
---|
213 | EIGEN_STATIC_ASSERT_LVALUE(XprType)
|
---|
214 | return m_xpr.const_cast_derived()
|
---|
215 | .coeffRef(rowId + m_startRow.value(), colId + m_startCol.value());
|
---|
216 | }
|
---|
217 |
|
---|
218 | inline const Scalar& coeffRef(Index rowId, Index colId) const
|
---|
219 | {
|
---|
220 | return m_xpr.derived()
|
---|
221 | .coeffRef(rowId + m_startRow.value(), colId + m_startCol.value());
|
---|
222 | }
|
---|
223 |
|
---|
224 | EIGEN_STRONG_INLINE const CoeffReturnType coeff(Index rowId, Index colId) const
|
---|
225 | {
|
---|
226 | return m_xpr.coeff(rowId + m_startRow.value(), colId + m_startCol.value());
|
---|
227 | }
|
---|
228 |
|
---|
229 | inline Scalar& coeffRef(Index index)
|
---|
230 | {
|
---|
231 | EIGEN_STATIC_ASSERT_LVALUE(XprType)
|
---|
232 | return m_xpr.const_cast_derived()
|
---|
233 | .coeffRef(m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index),
|
---|
234 | m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0));
|
---|
235 | }
|
---|
236 |
|
---|
237 | inline const Scalar& coeffRef(Index index) const
|
---|
238 | {
|
---|
239 | return m_xpr.const_cast_derived()
|
---|
240 | .coeffRef(m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index),
|
---|
241 | m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0));
|
---|
242 | }
|
---|
243 |
|
---|
244 | inline const CoeffReturnType coeff(Index index) const
|
---|
245 | {
|
---|
246 | return m_xpr
|
---|
247 | .coeff(m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index),
|
---|
248 | m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0));
|
---|
249 | }
|
---|
250 |
|
---|
251 | template<int LoadMode>
|
---|
252 | inline PacketScalar packet(Index rowId, Index colId) const
|
---|
253 | {
|
---|
254 | return m_xpr.template packet<Unaligned>
|
---|
255 | (rowId + m_startRow.value(), colId + m_startCol.value());
|
---|
256 | }
|
---|
257 |
|
---|
258 | template<int LoadMode>
|
---|
259 | inline void writePacket(Index rowId, Index colId, const PacketScalar& val)
|
---|
260 | {
|
---|
261 | m_xpr.const_cast_derived().template writePacket<Unaligned>
|
---|
262 | (rowId + m_startRow.value(), colId + m_startCol.value(), val);
|
---|
263 | }
|
---|
264 |
|
---|
265 | template<int LoadMode>
|
---|
266 | inline PacketScalar packet(Index index) const
|
---|
267 | {
|
---|
268 | return m_xpr.template packet<Unaligned>
|
---|
269 | (m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index),
|
---|
270 | m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0));
|
---|
271 | }
|
---|
272 |
|
---|
273 | template<int LoadMode>
|
---|
274 | inline void writePacket(Index index, const PacketScalar& val)
|
---|
275 | {
|
---|
276 | m_xpr.const_cast_derived().template writePacket<Unaligned>
|
---|
277 | (m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index),
|
---|
278 | m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0), val);
|
---|
279 | }
|
---|
280 |
|
---|
281 | #ifdef EIGEN_PARSED_BY_DOXYGEN
|
---|
282 | /** \sa MapBase::data() */
|
---|
283 | inline const Scalar* data() const;
|
---|
284 | inline Index innerStride() const;
|
---|
285 | inline Index outerStride() const;
|
---|
286 | #endif
|
---|
287 |
|
---|
288 | const typename internal::remove_all<typename XprType::Nested>::type& nestedExpression() const
|
---|
289 | {
|
---|
290 | return m_xpr;
|
---|
291 | }
|
---|
292 |
|
---|
293 | Index startRow() const
|
---|
294 | {
|
---|
295 | return m_startRow.value();
|
---|
296 | }
|
---|
297 |
|
---|
298 | Index startCol() const
|
---|
299 | {
|
---|
300 | return m_startCol.value();
|
---|
301 | }
|
---|
302 |
|
---|
303 | protected:
|
---|
304 |
|
---|
305 | const typename XprType::Nested m_xpr;
|
---|
306 | const internal::variable_if_dynamic<Index, XprType::RowsAtCompileTime == 1 ? 0 : Dynamic> m_startRow;
|
---|
307 | const internal::variable_if_dynamic<Index, XprType::ColsAtCompileTime == 1 ? 0 : Dynamic> m_startCol;
|
---|
308 | const internal::variable_if_dynamic<Index, RowsAtCompileTime> m_blockRows;
|
---|
309 | const internal::variable_if_dynamic<Index, ColsAtCompileTime> m_blockCols;
|
---|
310 | };
|
---|
311 |
|
---|
312 | /** \internal Internal implementation of dense Blocks in the direct access case.*/
|
---|
313 | template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel>
|
---|
314 | class BlockImpl_dense<XprType,BlockRows,BlockCols, InnerPanel,true>
|
---|
315 | : public MapBase<Block<XprType, BlockRows, BlockCols, InnerPanel> >
|
---|
316 | {
|
---|
317 | typedef Block<XprType, BlockRows, BlockCols, InnerPanel> BlockType;
|
---|
318 | public:
|
---|
319 |
|
---|
320 | typedef MapBase<BlockType> Base;
|
---|
321 | EIGEN_DENSE_PUBLIC_INTERFACE(BlockType)
|
---|
322 | EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl_dense)
|
---|
323 |
|
---|
324 | /** Column or Row constructor
|
---|
325 | */
|
---|
326 | inline BlockImpl_dense(XprType& xpr, Index i)
|
---|
327 | : Base(internal::const_cast_ptr(&xpr.coeffRef(
|
---|
328 | (BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) ? i : 0,
|
---|
329 | (BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) ? i : 0)),
|
---|
330 | BlockRows==1 ? 1 : xpr.rows(),
|
---|
331 | BlockCols==1 ? 1 : xpr.cols()),
|
---|
332 | m_xpr(xpr)
|
---|
333 | {
|
---|
334 | init();
|
---|
335 | }
|
---|
336 |
|
---|
337 | /** Fixed-size constructor
|
---|
338 | */
|
---|
339 | inline BlockImpl_dense(XprType& xpr, Index startRow, Index startCol)
|
---|
340 | : Base(internal::const_cast_ptr(&xpr.coeffRef(startRow,startCol))), m_xpr(xpr)
|
---|
341 | {
|
---|
342 | init();
|
---|
343 | }
|
---|
344 |
|
---|
345 | /** Dynamic-size constructor
|
---|
346 | */
|
---|
347 | inline BlockImpl_dense(XprType& xpr,
|
---|
348 | Index startRow, Index startCol,
|
---|
349 | Index blockRows, Index blockCols)
|
---|
350 | : Base(internal::const_cast_ptr(&xpr.coeffRef(startRow,startCol)), blockRows, blockCols),
|
---|
351 | m_xpr(xpr)
|
---|
352 | {
|
---|
353 | init();
|
---|
354 | }
|
---|
355 |
|
---|
356 | const typename internal::remove_all<typename XprType::Nested>::type& nestedExpression() const
|
---|
357 | {
|
---|
358 | return m_xpr;
|
---|
359 | }
|
---|
360 |
|
---|
361 | /** \sa MapBase::innerStride() */
|
---|
362 | inline Index innerStride() const
|
---|
363 | {
|
---|
364 | return internal::traits<BlockType>::HasSameStorageOrderAsXprType
|
---|
365 | ? m_xpr.innerStride()
|
---|
366 | : m_xpr.outerStride();
|
---|
367 | }
|
---|
368 |
|
---|
369 | /** \sa MapBase::outerStride() */
|
---|
370 | inline Index outerStride() const
|
---|
371 | {
|
---|
372 | return m_outerStride;
|
---|
373 | }
|
---|
374 |
|
---|
375 | #ifndef __SUNPRO_CC
|
---|
376 | // FIXME sunstudio is not friendly with the above friend...
|
---|
377 | // META-FIXME there is no 'friend' keyword around here. Is this obsolete?
|
---|
378 | protected:
|
---|
379 | #endif
|
---|
380 |
|
---|
381 | #ifndef EIGEN_PARSED_BY_DOXYGEN
|
---|
382 | /** \internal used by allowAligned() */
|
---|
383 | inline BlockImpl_dense(XprType& xpr, const Scalar* data, Index blockRows, Index blockCols)
|
---|
384 | : Base(data, blockRows, blockCols), m_xpr(xpr)
|
---|
385 | {
|
---|
386 | init();
|
---|
387 | }
|
---|
388 | #endif
|
---|
389 |
|
---|
390 | protected:
|
---|
391 | void init()
|
---|
392 | {
|
---|
393 | m_outerStride = internal::traits<BlockType>::HasSameStorageOrderAsXprType
|
---|
394 | ? m_xpr.outerStride()
|
---|
395 | : m_xpr.innerStride();
|
---|
396 | }
|
---|
397 |
|
---|
398 | typename XprType::Nested m_xpr;
|
---|
399 | Index m_outerStride;
|
---|
400 | };
|
---|
401 |
|
---|
402 | } // end namespace internal
|
---|
403 |
|
---|
404 | } // end namespace Eigen
|
---|
405 |
|
---|
406 | #endif // EIGEN_BLOCK_H
|
---|