Holds strides information for Map. More...
#include <Stride.h>
Public Types | |
| enum | { InnerStrideAtCompileTime = _InnerStrideAtCompileTime, OuterStrideAtCompileTime = _OuterStrideAtCompileTime } |
| typedef DenseIndex | Index |
Public Member Functions | |
| Index | inner () const |
| Index | outer () const |
| Stride () | |
| Stride (Index outerStride, Index innerStride) | |
| Stride (const Stride &other) | |
Protected Attributes | |
| internal::variable_if_dynamic < Index, InnerStrideAtCompileTime > | m_inner |
| internal::variable_if_dynamic < Index, OuterStrideAtCompileTime > | m_outer |
Holds strides information for Map.
This class holds the strides information for mapping arrays with strides with class Map.
It holds two values: the inner stride and the outer stride.
The inner stride is the pointer increment between two consecutive entries within a given row of a row-major matrix or within a given column of a column-major matrix.
The outer stride is the pointer increment between two consecutive rows of a row-major matrix or between two consecutive columns of a column-major matrix.
These two values can be passed either at compile-time as template parameters, or at runtime as arguments to the constructor.
Indeed, this class takes two template parameters:
| _OuterStrideAtCompileTime | the outer stride, or Dynamic if you want to specify it at runtime. |
| _InnerStrideAtCompileTime | the inner stride, or Dynamic if you want to specify it at runtime. |
Here is an example:
int array[24]; for(int i = 0; i < 24; ++i) array[i] = i; cout << Map<MatrixXi, 0, Stride<Dynamic,2> > (array, 3, 3, Stride<Dynamic,2>(8, 2)) << endl;
Output:
| typedef DenseIndex Stride< _OuterStrideAtCompileTime, _InnerStrideAtCompileTime >::Index |
Reimplemented in OuterStride< Value >, OuterStride<>, and InnerStride< Value >.
| anonymous enum |
internal::variable_if_dynamic<Index, InnerStrideAtCompileTime> Stride< _OuterStrideAtCompileTime, _InnerStrideAtCompileTime >::m_inner [protected] |
internal::variable_if_dynamic<Index, OuterStrideAtCompileTime> Stride< _OuterStrideAtCompileTime, _InnerStrideAtCompileTime >::m_outer [protected] |