draconisplusplus/include/rfl/internal/tup_to_ptr_tuple.hpp
2024-06-08 14:10:59 -04:00

30 lines
777 B
C++

#ifndef RFL_INTERNAL_TUP_TO_PTR_TUPLE_HPP_
#define RFL_INTERNAL_TUP_TO_PTR_TUPLE_HPP_
#include <tuple>
#include "../Field.hpp"
#include "../make_named_tuple.hpp"
namespace rfl {
namespace internal {
/// Generates a named tuple that contains pointers to the original values in
/// the struct from a tuple.
template <class TupleType, class... AlreadyExtracted>
auto tup_to_ptr_tuple(TupleType& _t, AlreadyExtracted... _a) {
constexpr auto i = sizeof...(AlreadyExtracted);
constexpr auto size = std::tuple_size_v<TupleType>;
if constexpr (i == size) {
return std::make_tuple(_a...);
} else {
return tup_to_ptr_tuple(_t, _a..., &std::get<i>(_t));
}
}
} // namespace internal
} // namespace rfl
#endif