Concept definition

template<typename Fn, typename T>
concept dolfinx::mesh::MarkerFn =  std::is_invocable_r<
    std::vector<std::int8_t>, Fn,
    MDSPAN_IMPL_STANDARD_NAMESPACE::mdspan<
        const T, MDSPAN_IMPL_STANDARD_NAMESPACE::extents<
                     std::size_t, 3,
                     MDSPAN_IMPL_STANDARD_NAMESPACE::dynamic_extent>>>::value

Detailed Description

Requirements on function for geometry marking.