View dot multiplication causing runtime error

[Heavy-Sauria]

The following example causing runtime error:

#ifndef __TESTCPP__
#define __TESTCPP__

#include <iostream>
#include <xtensor/xarray.hpp>
#include <xtensor/xfixed.hpp>
#include <xtensor/xio.hpp>
#include <xtensor/xtensor.hpp>
#include <xtensor/xview.hpp>
#include <xtensor/xindex_view.hpp>

#include "xtensor-blas/xlinalg.hpp"


int main()
{
    xt::xtensor_fixed<double, xt::xshape<4, 4> > c = xt::linspace<double>(1.0, 16, 16);
    std::cout << c << std::endl
              << std::endl;
    xt::filter(c, c > 5) = 0;
    std::cout << c << std::endl
              << std::endl;

    auto v1 = xt::view(c, xt::range(0, 2), xt::range(0, 2));

    std::cout << v1 << std::endl
              << std::endl;

    v1 = xt::linalg::dot(v1, v1);
    std::cout << c << std::endl;
}

#endif

Result:

{{  1.,   2.,   3.,   4.},
 {  5.,   6.,   7.,   8.},
 {  9.,  10.,  11.,  12.},
 { 13.,  14.,  15.,  16.}}

{{ 1.,  2.,  3.,  4.},
 { 5.,  0.,  0.,  0.},
 { 0.,  0.,  0.,  0.},
 { 0.,  0.,  0.,  0.}}

{{ 1.,  2.},
 { 5.,  0.}}

terminate called after throwing an instance of 'std::runtime_error'
  what():  No valid layout chosen.
Aborted (core dumped)

g++  --std=c++20  -DXTENSOR_USE_FLENS_BLAS -I./xtensor/include -I./xtl/include -I./xtensor-blas/include  test.cpp -o test

xtensor version

commit d09e8076fe918562efca0f9ecee2748ce0de1692 (HEAD -> master, origin/master, origin/HEAD)
Merge: 5b6f0996 318239f5
Author: Johan Mabille <[email protected]>
Date:   Wed Mar 31 14:27:15 2021 +0200

    Merge pull request #2344 from t-bltg/ravel
    
    FIX for xtensor-stack/xtl/issues/245

xtensor-blas version

commit 303bb5bd4e10f888fb4ecf2b2b671fa2b02ea89d (HEAD -> master, tag: 0.19.1, origin/master, origin/HEAD)
Author: Johan Mabille <[email protected]>
Date:   Tue Mar 23 21:23:14 2021 +0100

    Release 0.19.1