From 1269cc5023bce875d4bb69ef9de082990e061265 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Sat, 27 May 2023 20:15:39 +0200
Subject: c++: Added more template support

---
 src/codec/data.h     | 10 ++++++++--
 src/core/templates.h | 13 +++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/codec/data.h b/src/codec/data.h
index 442fa26..f9bf31d 100644
--- a/src/codec/data.h
+++ b/src/codec/data.h
@@ -79,8 +79,14 @@ private:
 	std::tuple<data<T,encode::Native>...> value_;
 public:
 	template<string_literal literal>
-	data<T, encode::Native>& get(){
-		return std::get<parameter_packe_index<literal, literals...>::value>(value_);
+	data<
+		parameter_pack_type<
+			parameter_pack_index<
+				literal, literals...
+			>::value
+		, T...>::type
+	, encode::Native>& get(){
+		return std::get<parameter_pack_index<literal, literals...>::value>(value_);
 	}
 
 	constexpr size_t size() const {
diff --git a/src/core/templates.h b/src/core/templates.h
index 833bb5b..c363a16 100644
--- a/src/core/templates.h
+++ b/src/core/templates.h
@@ -13,4 +13,17 @@ struct parameter_pack_index<T, TL0, TL...> {
 	static constexpr size_t value =
 		1u + parameter_pack_index<T, TL...>::value;
 };
+
+template <size_t N, class... T> struct parameter_pack_type;
+
+template <class TN, class... T> struct parameter_pack_type<0, TN, T...> {
+	using type = TN;
+};
+
+template <size_t N, class TN, class... T>
+struct parameter_pack_type<N, TN, T...> {
+	static_assert(sizeof...(T) > 0, "Exhausted parameters");
+	using type = typename parameter_pack_type<N - 1, T...>::type;
+};
+
 }
-- 
cgit v1.2.3