Fix SIMD assignment to xfunctor_view destinations - #2932
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xt::real(e) = w failed to compile with XTENSOR_USE_XSIMD: the SIMD gate only probed load_simd, but the linear assigner also needs data() on the destination, which functor views lack. Gate the SIMD paths on data_interface_expression<E1> instead; functor views fall back to scalar assignment while containers keep the SIMD path. Adds a regression test (test_xcomplex.assign_to_real_part).
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| static constexpr bool simd_interface() | ||
| { | ||
| return has_simd_interface<E1, requested_value_type>() | ||
| return data_interface_expression<E1> && has_simd_interface<E1, requested_value_type>() |
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data_interface_expression is orthogonal to simd_interface and should not be required here. What is the current issue with SIMD assignment to xfunctor_view destination?
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