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Add 1D overloads of operator()

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This commit is contained in:
Gael Guennebaud
2017-01-11 13:17:09 +01:00
parent 1b5570988b
commit 04397f17e2
2 changed files with 97 additions and 5 deletions
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70
Eigen/src/plugins/IndexedViewMethods.h
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@@ -13,7 +13,7 @@
#ifndef EIGEN_INDEXED_VIEW_METHOD_2ND_PASS
#define EIGEN_INDEXED_VIEW_METHOD_CONST const
#define EIGEN_INDEXED_VIEW_METHOD_TYPE ConstIndexedViewType
#define EIGEN_INDEXED_VIEW_METHOD_TYPE ConstIndexedViewType
#else
#define EIGEN_INDEXED_VIEW_METHOD_CONST
#define EIGEN_INDEXED_VIEW_METHOD_TYPE IndexedViewType
@@ -84,6 +84,62 @@ operator()(const RowIndicesT (&rowIndices)[RowIndicesN], const ColIndicesT (&col
(derived(), rowIndices, colIndices);
}
// Overloads for 1D vectors/arrays
template<typename Indices>
typename internal::enable_if<
IsRowMajor && (!(internal::get_compile_time_incr<typename internal::MakeIndexing<Indices>::type>::value==1 || internal::is_integral<Indices>::value)),
IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Index>::type,typename internal::MakeIndexing<Indices>::type> >::type
operator()(const Indices& indices) EIGEN_INDEXED_VIEW_METHOD_CONST
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Index>::type,typename internal::MakeIndexing<Indices>::type>
(derived(), internal::make_indexing(0,derived().rows()), internal::make_indexing(indices,derived().cols()));
}
template<typename Indices>
typename internal::enable_if<
(!IsRowMajor) && (!(internal::get_compile_time_incr<typename internal::MakeIndexing<Indices>::type>::value==1 || internal::is_integral<Indices>::value)),
IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Indices>::type,typename internal::MakeIndexing<Index>::type> >::type
operator()(const Indices& indices) EIGEN_INDEXED_VIEW_METHOD_CONST
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Indices>::type,typename internal::MakeIndexing<Index>::type>
(derived(), internal::make_indexing(indices,derived().rows()), internal::make_indexing(Index(0),derived().cols()));
}
template<typename Indices>
typename internal::enable_if<
(internal::get_compile_time_incr<typename internal::MakeIndexing<Indices>::type>::value==1) && (!internal::is_integral<Indices>::value),
VectorBlock<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,internal::get_compile_time_size<Indices,SizeAtCompileTime>::value> >::type
operator()(const Indices& indices) EIGEN_INDEXED_VIEW_METHOD_CONST
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
typename internal::MakeIndexing<Indices>::type actualIndices = internal::make_indexing(indices,derived().size());
return VectorBlock<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,internal::get_compile_time_size<Indices,SizeAtCompileTime>::value>
(derived(), internal::first(actualIndices), internal::size(actualIndices));
}
template<typename IndicesT, std::size_t IndicesN>
typename internal::enable_if<IsRowMajor,
IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Index>::type,const IndicesT (&)[IndicesN]> >::type
operator()(const IndicesT (&indices)[IndicesN]) EIGEN_INDEXED_VIEW_METHOD_CONST
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,typename internal::MakeIndexing<Index>::type,const IndicesT (&)[IndicesN]>
(derived(), internal::make_indexing(0,derived().rows()), indices);
}
template<typename IndicesT, std::size_t IndicesN>
typename internal::enable_if<!IsRowMajor,
IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,const IndicesT (&)[IndicesN],typename internal::MakeIndexing<Index>::type> >::type
operator()(const IndicesT (&indices)[IndicesN]) EIGEN_INDEXED_VIEW_METHOD_CONST
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return IndexedView<EIGEN_INDEXED_VIEW_METHOD_CONST Derived,const IndicesT (&)[IndicesN],typename internal::MakeIndexing<Index>::type>
(derived(), indices, internal::make_indexing(0,derived().rows()));
}
#undef EIGEN_INDEXED_VIEW_METHOD_CONST
#undef EIGEN_INDEXED_VIEW_METHOD_TYPE
@@ -123,11 +179,21 @@ operator()(const RowIndicesT (&rowIndices)[RowIndicesN], const ColIndicesT (&col
* Otherwise a more general IndexedView<Derived,RowIndices',ColIndices'> object will be returned, after conversion of the inputs
* to more suitable types \c RowIndices' and \c ColIndices'.
*
* \sa class Block, class IndexedView, DenseBase::block(Index,Index,Index,Index)
* For 1D vectors and arrays, you better use the operator()(const Indices&) overload, which behave the same way but taking a single parameter.
*
* \sa operator()(const Indices&), class Block, class IndexedView, DenseBase::block(Index,Index,Index,Index)
*/
template<typename RowIndices, typename ColIndices>
IndexedView_or_Block
operator()(const RowIndices& rowIndices, const ColIndices& colIndices);
/** This is an overload of operator()(const RowIndices&, const ColIndices&) for 1D vectors or arrays
*
* \only_for_vectors
*/
template<typename Indices>
IndexedView_or_VectorBlock
operator()(const Indices& indices);
#endif // EIGEN_PARSED_BY_DOXYGEN