add tuple

SachiSakurane · Dec 26, 2024 · 84da4b5 · 84da4b5
1 parent 3b87cb9
commit 84da4b5
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diff --git a/include/riw/tuple.hpp b/include/riw/tuple.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+#include <riw/tuple/tuple_pair.hpp>
diff --git a/include/riw/tuple/tuple_pair.hpp b/include/riw/tuple/tuple_pair.hpp
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <tuple>
+#include <utility>
+
+namespace riw {
+namespace detail {
+  template <class... Ts, class... Us, std::size_t... Is>
+  constexpr inline auto tuple_pair_impl(const std::tuple<Ts...> &t1, const std::tuple<Us...> &t2,
+                                        std::index_sequence<Is...>) {
+    return std::make_tuple(std::make_pair(std::get<Is>(t1), std::get<Is>(t2))...);
+  }
+} // namespace detail
+
+template <class... Ts, class... Us>
+constexpr inline auto tuple_pair(const std::tuple<Ts...> &t1, const std::tuple<Us...> &t2) {
+  static_assert(sizeof...(Ts) == sizeof...(Us), "Tuples must have the same number of elements");
+  return detail::tuple_pair_impl(t1, t2, std::index_sequence_for<Ts...>{});
+}
+} // namespace riw
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		#pragma once

		#include <riw/tuple/tuple_pair.hpp>