extract_projected_composite_double()

template<typename ValueT , typename T >
requires (detail::is_composite_operation_data_v<T> && ArithmeticData<ValueT> && Kakshya::DataVariantElement<ValueT>)

static std::optional< CompositeFieldDoubleData > MayaFlux::Yantra::OperationHelper::extract_projected_composite_double ( const T &  compute_data, std::string_view  field_name  )

inlinestatic

Extract one compatible numeric field for double-based operations.

Template Parameters

ValueT

Exact field type in the Composite layout.

Returns

Owning values, presence, projected dimensions, and source schema.

Definition at line 141 of file OperationHelper.hpp.

    {
        auto projection = project_composite_field<ValueT>(compute_data, field_name);
        if (!projection)
            return std::nullopt;
 
        const auto& values = std::get<std::vector<ValueT>>(projection->values);
        CompositeFieldDoubleData result;
        result.values.reserve(values.size());
        for (const auto value : values)
            result.values.push_back(static_cast<double>(value));
        result.presence = std::get<std::vector<uint8_t>>(std::move(projection->presence));
        result.dimensions = std::move(projection->dimensions);
        result.modality = projection->modality;
        result.source_structure = get_structure_info(compute_data);
        result.field_name = field_name;
        return result;
    }

References value, values, and MayaFlux::Yantra::CompositeFieldDoubleData::values.