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Add type_list functionality to etl::tuple using etl::tuple_from_type_list

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This commit is contained in:
John Wellbelove 2026-01-28 17:26:57 +00:00
parent a669d1f46e
commit a4e4527669
2 changed files with 26 additions and 1 deletions
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16
include/etl/tuple.h
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@ -132,7 +132,7 @@ namespace etl
using value_type = void; ///< The type contained by this tuple.
using this_type = tuple<>; ///< The type of this tuple.
using base_type = void; ///< The type of the base tuple.
using type_list = etl::type_list<>; ///< The type list for this tuple.
using type_list = etl::type_list<>; ///< The type list for this tuple.
using index_sequence_type = etl::make_index_sequence<0>; ///< The index_sequence type for this tuple.
//*********************************
@ -1276,6 +1276,20 @@ namespace etl
{
lhs.swap(rhs);
}
//***************************************************************************
/// Helper to turn etl::type_list<TTypes...> into etl::tuple<TTypes...>
template <typename TList>
struct tuple_from_type_list;
template <typename... TTypes>
struct tuple_from_type_list<etl::type_list<TTypes...>>
{
using type = etl::tuple<TTypes...>;
};
template <typename TTypeList>
using tuple_from_type_list_t = typename tuple_from_type_list<TTypeList>::type;
}
namespace std

11
test/test_tuple.cpp
View File

@ -104,6 +104,17 @@ namespace
CHECK_TRUE((std::is_same<Data, etl::tuple_element_t<3, Tuple>>::value));
}
//*************************************************************************
TEST(test_tuple_from_type_list)
{
using TypeList = etl::type_list<int, double, int, Data>;
using TupleFromTypeList = etl::tuple_from_type_list_t<TypeList>;
using Tuple = etl::tuple<int, double, int, Data>;
CHECK_TRUE((std::is_same<Tuple, TupleFromTypeList>::value));
CHECK_TRUE((std::is_same<TypeList, TupleFromTypeList::type_list>::value));
}
//*************************************************************************
TEST(test_tuple_type_list)
{