| [eigen] Re: inplace_transpose_selector |
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- To: "eigen@xxxxxxxxxxxxxxxxxxx" <eigen@xxxxxxxxxxxxxxxxxxx>
- Subject: [eigen] Re: inplace_transpose_selector
- From: Ivan Kush <ivan.v.kush@xxxxxxxxx>
- Date: Sat, 26 Mar 2016 23:41:54 +0300
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We're calling inplace_transpose_selector<Derived>::run. What template specialization will it choose?
template<typename Derived>
inline void DenseBase<Derived>::transposeInPlace()
{
eigen_assert((rows() == cols() || (RowsAtCompileTime == Dynamic && ColsAtCompileTime == Dynamic))
&& "transposeInPlace() called on a non-square non-resizable matrix");
internal::inplace_transpose_selector<Derived>::run(derived());
}
This?
template<typename MatrixType>
struct inplace_transpose_selector<MatrixType,true,true> { // PacketSize x PacketSize
or this?
template<typename MatrixType>
struct inplace_transpose_selector<MatrixType,true,false> { // square matrix
the difference is only in the 3rd argument (in the 1st - it's ture, 2nd has false)
--
Best wishes,
Ivan Kush
26.03.2016, 23:35, "Ivan Kush" <ivan.v.kush@xxxxxxxxx>:
Hello,
I'm lookong in the Eigen internals(want to be a bug fixer/contributor) and saw such construction. Could you please explain why is this construction .template triangularView<StrictlyUpper>().?
m.matrix().template triangularView<StrictlyUpper>().swap(m.matrix().transpose());
--
Best wishes,
Ivan Kush
R&D Stadyo
Moscow, Russia