Comments (4)
xissburg
commented on May 24, 2024
I think you should use EnTT at the v3.10.1 tag not the v3.10.x branch (there isn't a v3.10.1 branch).
It looks like the template function visit_component is causing confusion in some compilers. I have removed the version without a tuple since it's not being used. That's on the master branch though. It won't be picked up by Conan just yet.
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danielytics
commented on May 24, 2024
I meant tag, sorry.
That’s ok, I will try out master a little later today, with the tagged version off EnTT and report back. Thanks for looking into it for me.
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danielytics
commented on May 24, 2024
Hmm, I'm still getting the same compile error:
In file included from edyn/src/edyn/collision/raycast.cpp:13:
edyn/include/edyn/shapes/shapes.hpp:100:5: error: no matching function for call to 'visit_component'
visit_component(shapes_tuple, index.value, entity, views_tuple, visitor);
^~~~~~~~~~~~~~~
edyn/src/edyn/collision/raycast.cpp:36:9: note: in instantiation of function template specialization 'edyn::visit_shape<(lambda at edyn/src/edyn/collision/raycast.cpp:36:56)>' requested here
visit_shape(sh_idx, entity, shape_views_tuple, [&](auto &&shape) {
^
edyn/include/edyn/util/visit_component.hpp:132:6: note: candidate function template not viable: no known conversion from 'const edyn::tuple_of_shape_views_t' (aka 'const tuple<basic_view<entt::entity, type_list<edyn::sphere_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::cylinder_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::capsule_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::box_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::polyhedron_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::compound_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::plane_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::mesh_shape>, type_list<>>, basic_view<entt::entity, type_list<edyn::paged_mesh_shape>, type_list<>>>') to 'entt::registry &' (aka 'basic_registry<entt::entity> &') for 4th argument
void visit_component(std::tuple<Ts...>, IndexType index, entt::entity entity,
^
edyn/include/edyn/util/visit_component.hpp:68:6: note: candidate template ignored: deduced packs of different lengths for parameter 'Ts' (<edyn::sphere_shape, edyn::cylinder_shape, edyn::capsule_shape, edyn::box_shape, edyn::polyhedron_shape, edyn::compound_shape, edyn::plane_shape, edyn::mesh_shape, edyn::paged_mesh_shape> vs. <edyn::sphere_shape>)
void visit_component([[maybe_unused]] std::tuple<Ts...>, IndexType index, entt::entity entity,
^
edyn/include/edyn/util/visit_component.hpp:122:6: note: candidate function template not viable: requires 4 arguments, but 5 were provided
void visit_component(IndexType index, entt::entity entity,
So, its this overload that its trying to call (the 5 argument one):
template<typename... Ts, typename IndexType, typename VisitorType>
void visit_component([[maybe_unused]] std::tuple<Ts...>, IndexType index, entt::entity entity,
const std::tuple<entt::basic_view<entt::entity, entt::get_t<Ts>, entt::exclude_t<>>...> &views_tuple,
VisitorType visitor)
And the error is:
edyn/include/edyn/util/visit_component.hpp:68:6: note: candidate template ignored: deduced packs of different lengths for parameter 'Ts' (<edyn::sphere_shape, edyn::cylinder_shape, edyn::capsule_shape, edyn::box_shape, edyn::polyhedron_shape, edyn::compound_shape, edyn::plane_shape, edyn::mesh_shape, edyn::paged_mesh_shape> vs. <edyn::sphere_shape>)
void visit_component([[maybe_unused]] std::tuple<Ts...>, IndexType index, entt::entity entity,
^
So from the function call:
visit_component(shapes_tuple, index.value, entity, views_tuple, visitor);
it looks like shapes_tuple and views_tuple have a different number of elements (shapes_tuple has 9, views_tuple has 1), but as both use the Ts... template parameter, they should match.
That's as far as I'm able to look into it, since I don't understand the code.
❯ clang++ -v
Ubuntu clang version 14.0.0-1ubuntu1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Candidate multilib: .;@m64
Selected multilib: .;@m64
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xissburg
commented on May 24, 2024
Yeah looks like your analysis is correct. The number of elements in shapes_tuple and views_tuple is not the same according to this error. I can't see why that'd be the case, since views_tuple is generated from the same shapes_tuple, i.e. it is a transformation from a tuple of shape types into a tuple of EnTT views of these shape types. I am on clang 13 here.
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