set()

template<typename T >
requires ArithmeticData<T>

bool MayaFlux::Kakshya::CompositeArray::set ( size_t  index, std::string_view  field_name, T  value  )

inline

Write an arithmetic field of an existing element.

Template Parameters

T	Declared arithmetic type, or int64_t/double for a dynamic field.

Parameters

index	Element index.
field_name	Field to write.
value	Value to store.

Returns

True on success; false for an invalid index, name, or type.

Definition at line 280 of file Composite.hpp.

    {
        if constexpr (std::same_as<T, int64_t> || std::same_as<T, double>) {
            const auto field_index = m_layout.find_field(field_name);
            if (field_index && m_layout.fields()[*field_index].type == typeid(detail::CompositeDynamic)) {
                if constexpr (std::same_as<T, int64_t>)
                    return set_integer(index, field_name, value);
                else
                    return set_real(index, field_name, value);
            }
        }
        const auto field_index = validate_write(index, field_name, typeid(T));
        if (!field_index)
            return false;
 
        const auto& field = m_layout.fields()[*field_index];
        auto& rows = std::get<std::vector<uint8_t>>(m_rows);
        std::memcpy(rows.data() + index * m_layout.stride_bytes() + field.offset_bytes,
            &value, sizeof(T));
        set_present(index, *field_index, true);
        return true;
    }

References index, rows, and value.

Referenced by MayaFlux::Yantra::OperationHelper::reconstruct_projected_composite().

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