Build breaks with clang-19: error: ambiguous partial specializations of 'rebind_container<long, xt::svector<unsigned long>>'

[yurivict]

In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:14:
In file included from /usr/local/include/xtensor/xbroadcast.hpp:23:
In file included from /usr/local/include/xtensor/xaccessible.hpp:14:
In file included from /usr/local/include/xtensor/xstrides.hpp:21:
In file included from /usr/local/include/xtensor/xshape.hpp:23:
In file included from /usr/local/include/xtensor/xstorage.hpp:23:
In file included from /usr/local/include/xtensor/xtensor_simd.hpp:17:
/usr/local/include/xtensor/xutils.hpp:896:31: error: ambiguous partial specializations of 'rebind_container<long, xt::svector<unsigned long>>'
  896 |         using type = typename rebind_container<std::ptrdiff_t, S>::type;
      |                               ^
/usr/local/include/xtensor/xutils.hpp:924:5: note: in instantiation of template class 'xt::get_strides_type<xt::svector<unsigned long>>' requested here
  924 |     using get_strides_t = typename get_strides_type<C>::type;
      |     ^
/usr/local/include/xtensor/xarray.hpp:53:30: note: in instantiation of template type alias 'get_strides_t' requested here
   53 |         using strides_type = get_strides_t<shape_type>;
      |                              ^
/usr/local/include/xtensor/xcontainer.hpp:36:43: note: in instantiation of template class 'xt::xcontainer_inner_types<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   36 |         using inner_shape_type = typename xcontainer_inner_types<D>::inner_shape_type;
      |                                           ^
/usr/local/include/xtensor/xarray.hpp:64:11: note: in instantiation of template class 'xt::xcontainer_iterable_types<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   64 |         : xcontainer_iterable_types<xarray_container<EC, L, SC, Tag>>
      |           ^
/usr/local/include/xtensor/xiterable.hpp:43:43: note: in instantiation of template class 'xt::xiterable_inner_types<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   43 |         using inner_shape_type = typename iterable_types::inner_shape_type;
      |                                           ^
/usr/local/include/xtensor/xiterable.hpp:151:30: note: (skipping 1 context in backtrace; use -ftemplate-backtrace-limit=0 to see all)
  151 |     class xiterable : public xconst_iterable<D>
      |                              ^
/usr/local/include/xtensor/xiterable.hpp:311:42: note: in instantiation of template class 'xt::xiterable<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  311 |     class xcontiguous_iterable : private xiterable<D>
      |                                          ^
/usr/local/include/xtensor/xcontainer.hpp:71:31: note: in instantiation of template class 'xt::xcontiguous_iterable<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   71 |     class xcontainer : public xcontiguous_iterable<D>,
      |                               ^
/usr/local/include/xtensor/xcontainer.hpp:260:39: note: in instantiation of template class 'xt::xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  260 |     class xstrided_container : public xcontainer<D>
      |                                       ^
/usr/local/include/xtensor/xarray.hpp:82:37: note: in instantiation of template class 'xt::xstrided_container<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   82 |     class xarray_container : public xstrided_container<xarray_container<EC, L, SC, Tag>>,
      |                                     ^
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/flow/flow_graph_impl.hpp:253:30: note: in instantiation of template class 'xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>' requested here
  253 |             xt::xarray<bool> m_mask;
      |                              ^
/usr/local/include/xtensor/xutils.hpp:883:12: note: partial specialization matches [with X = long, C = xt::svector, T = unsigned long, N = 4]
  883 |     struct rebind_container<X, C<T, N>>
      |            ^
/usr/local/include/xtensor/xstorage.hpp:1415:12: note: partial specialization matches [with X = long, T = unsigned long, N = 4, A = std::allocator<unsigned long>, B = true]
 1415 |     struct rebind_container<X, svector<T, N, A, B>>
      |            ^
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:14:
In file included from /usr/local/include/xtensor/xbroadcast.hpp:25:
/usr/local/include/xtensor/xiterable.hpp:45:50: error: no type named 'stepper' in 'xt::xiterable_inner_types<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
   45 |         using stepper = typename iterable_types::stepper;
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
/usr/local/include/xtensor/xiterable.hpp:151:30: note: in instantiation of template class 'xt::xconst_iterable<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  151 |     class xiterable : public xconst_iterable<D>
      |                              ^
/usr/local/include/xtensor/xiterable.hpp:311:42: note: in instantiation of template class 'xt::xiterable<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  311 |     class xcontiguous_iterable : private xiterable<D>
      |                                          ^
/usr/local/include/xtensor/xcontainer.hpp:71:31: note: in instantiation of template class 'xt::xcontiguous_iterable<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   71 |     class xcontainer : public xcontiguous_iterable<D>,
      |                               ^
/usr/local/include/xtensor/xcontainer.hpp:260:39: note: in instantiation of template class 'xt::xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  260 |     class xstrided_container : public xcontainer<D>
      |                                       ^
/usr/local/include/xtensor/xarray.hpp:82:37: note: in instantiation of template class 'xt::xstrided_container<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   82 |     class xarray_container : public xstrided_container<xarray_container<EC, L, SC, Tag>>,
      |                                     ^
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/flow/flow_graph_impl.hpp:253:30: note: in instantiation of template class 'xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>' requested here
  253 |             xt::xarray<bool> m_mask;
      |                              ^
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:14:
In file included from /usr/local/include/xtensor/xbroadcast.hpp:25:
/usr/local/include/xtensor/xiterable.hpp:46:56: error: no type named 'const_stepper' in 'xt::xiterable_inner_types<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
   46 |         using const_stepper = typename iterable_types::const_stepper;
      |                               ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:15:
In file included from /usr/local/include/xtensor/xtensor.hpp:20:
/usr/local/include/xtensor/xcontainer.hpp:140:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  140 |         using accessible_base::at;
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:260:39: note: in instantiation of template class 'xt::xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
  260 |     class xstrided_container : public xcontainer<D>
      |                                       ^
/usr/local/include/xtensor/xarray.hpp:82:37: note: in instantiation of template class 'xt::xstrided_container<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>' requested here
   82 |     class xarray_container : public xstrided_container<xarray_container<EC, L, SC, Tag>>,
      |                                     ^
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/flow/flow_graph_impl.hpp:253:30: note: in instantiation of template class 'xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>' requested here
  253 |             xt::xarray<bool> m_mask;
      |                              ^
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:15:
In file included from /usr/local/include/xtensor/xtensor.hpp:20:
/usr/local/include/xtensor/xcontainer.hpp:141:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  141 |         using accessible_base::shape;
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:142:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  142 |         using accessible_base::operator[];
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:143:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  143 |         using accessible_base::back;
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:144:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  144 |         using accessible_base::front;
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:145:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  145 |         using accessible_base::in_bounds;
      |               ^~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xcontainer.hpp:146:15: error: using declaration refers into 'accessible_base::', which is not a base class of 'xcontainer<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  146 |         using accessible_base::periodic;
      |               ^~~~~~~~~~~~~~~~~
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:19:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/utils/xtensor_utils.hpp:10:
/usr/local/include/xtensor/xarray.hpp:93:52: error: no type named 'allocator_type' in 'xt::xstrided_container<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
   93 |         using allocator_type = typename base_type::allocator_type;
      |                                ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/flow/flow_graph_impl.hpp:253:30: note: in instantiation of template class 'xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>' requested here
  253 |             xt::xarray<bool> m_mask;
      |                              ^
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:19:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/utils/xtensor_utils.hpp:10:
/usr/local/include/xtensor/xarray.hpp:102:54: error: no type named 'backstrides_type' in 'xt::xstrided_container<xt::xarray_container<xt::uvector<bool>, xt::layout_type::row_major, xt::svector<unsigned long>>>'
  102 |         using backstrides_type = typename base_type::backstrides_type;
      |                                  ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:15:
In file included from /usr/local/include/xtensor/xtensor.hpp:20:
/usr/local/include/xtensor/xcontainer.hpp:855:21: error: no matching function for call to 'make_sequence'
  855 |         m_strides = xtl::make_sequence<inner_strides_type>(base_type::dimension(), 0);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/xtensor/xarray.hpp:502:11: note: in instantiation of member function 'xt::xstrided_container<xt::xarray_container<xt::uvector<double>, xt::layout_type::row_major, xt::svector<unsigned long>>>::xstrided_container' requested here
  502 |         : base_type()
      |           ^
/usr/local/include/xtensor/xsemantic.hpp:601:24: note: in instantiation of function template specialization 'xt::xarray_container<xt::uvector<double>, xt::layout_type::row_major, xt::svector<unsigned long>>::xarray_container<xt::xbroadcast<const xt::xfunction<xt::detail::minus, const xt::pyarray<double, xt::layout_type::row_major> &, xt::xstrided_view<xt::xtensor_container<xt::uvector<double>, 2, xt::layout_type::row_major> &, std::array<unsigned long, 2>, xt::layout_type::dynamic>> &, xt::sequence_view<xt::xbuffer_adaptor<unsigned long *>, 0>>>' requested here
  601 |         temporary_type tmp(e);
      |                        ^
/usr/local/include/xtensor/xsemantic.hpp:749:24: note: in instantiation of function template specialization 'xt::xsemantic_base<xt::xview<xt::pyarray<double, xt::layout_type::row_major> &, xt::xall<unsigned long>, xt::xall<unsigned long>>>::operator=<xt::xbroadcast<const xt::xfunction<xt::detail::minus, const xt::pyarray<double, xt::layout_type::row_major> &, xt::xstrided_view<xt::xtensor_container<xt::uvector<double>, 2, xt::layout_type::row_major> &, std::array<unsigned long, 2>, xt::layout_type::dynamic>> &, xt::sequence_view<xt::xbuffer_adaptor<unsigned long *>, 0>>>' requested here
  749 |             base_type::operator=(broadcast(rhs.derived_cast(), this->derived_cast().shape()));
      |                        ^
/usr/local/include/xtensor/xview.hpp:935:31: note: in instantiation of function template specialization 'xt::xview_semantic<xt::xview<xt::pyarray<double, xt::layout_type::row_major> &, xt::xall<unsigned long>, xt::xall<unsigned long>>>::operator=<xt::xfunction<xt::detail::minus, const xt::pyarray<double, xt::layout_type::row_major> &, xt::xstrided_view<xt::xtensor_container<xt::uvector<double>, 2, xt::layout_type::row_major> &, std::array<unsigned long, 2>, xt::layout_type::dynamic>>>' requested here
  935 |         return semantic_base::operator=(e);
      |                               ^
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/diffusion_adi.hpp:357:19: note: in instantiation of function template specialization 'xt::xview<xt::pyarray<double, xt::layout_type::row_major> &, xt::xall<unsigned long>, xt::xall<unsigned long>>::operator=<xt::xfunction<xt::detail::minus, const xt::pyarray<double, xt::layout_type::row_major> &, xt::xstrided_view<xt::xtensor_container<xt::uvector<double>, 2, xt::layout_type::row_major> &, std::array<unsigned long, 2>, xt::layout_type::dynamic>>>' requested here
  357 |         erosion_v = elevation - xt::transpose(elevation_next);
      |                   ^
/wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:219:56: note: in instantiation of member function 'fastscapelib::diffusion_adi_eroder<fastscapelib::raster_grid_xt<fastscapelib::py_selector, fastscapelib::raster_connect::queen>, fastscapelib::py_selector>::erode' requested here
  219 |                              &py_diffusion_adi_eroder::erode,
      |                                                        ^
/usr/local/include/xtl/xsequence.hpp:107:14: note: candidate template ignored: substitution failure [with S = inner_strides_type]: type 'inner_strides_type' (aka 'int') cannot be used prior to '::' because it has no members
  107 |     inline S make_sequence(typename S::size_type size, typename S::value_type v)
      |              ^                      ~
/usr/local/include/xtl/xsequence.hpp:101:14: note: candidate function template not viable: requires single argument 'size', but 2 arguments were provided
  101 |     inline S make_sequence(typename S::size_type size)
      |              ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/xtl/xsequence.hpp:113:14: note: candidate function template not viable: requires single argument 'init', but 2 arguments were provided
  113 |     inline S make_sequence(std::initializer_list<typename S::value_type> init)
      |              ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/python/src/eroders.cpp:4:
In file included from /wrkdirs/usr/ports/misc/py-fastscapelib/work-py311/fastscapelib-0.2.2/include/fastscapelib/eroders/spl.hpp:15:
In file included from /usr/local/include/xtensor/xtensor.hpp:20:
/usr/local/include/xtensor/xcontainer.hpp:856:25: error: no matching function for call to 'make_sequence'
  856 |         m_backstrides = xtl::make_sequence<inner_backstrides_type>(base_type::dimension(), 0);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/xtl/xsequence.hpp:107:14: note: candidate template ignored: substitution failure [with S = inner_backstrides_type]: type 'inner_backstrides_type' (aka 'int') cannot be used prior to '::' because it has no members
  107 |     inline S make_sequence(typename S::size_type size, typename S::value_type v)
      |              ^                      ~
/usr/local/include/xtl/xsequence.hpp:101:14: note: candidate function template not viable: requires single argument 'size', but 2 arguments were provided
  101 |     inline S make_sequence(typename S::size_type size)
      |              ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~

log

Version: 0.2.2
FreeBSD 14.1

[benbovy]

Thanks for the report. Similar errors have been reported upstream (xtensor-stack/xtensor#2804) so I don't think xtensor is compatible yet with clang 19.

[emmenlau]

See xtensor-stack/xtensor#2821 for work towards a potential fix. Help, reviews or testing is highly appreciated :-)