Implement forward

util.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "../type/type.hpp"
+
+namespace util {
+
+template <typename T>
+inline constexpr T &&forward(type::remove_reference_t<T> &t) noexcept
+{
+	return static_cast<T &&>(t);
+}
+
+template <typename T>
+inline constexpr T &&forward(type::remove_reference_t<T> &&t) noexcept
+{
+	static_assert(!type::is_lvalue_reference_v<T>, "Can not forward an rvalue as an lvalue.");
+	return static_cast<T &&>(t);
+}
+
+} // namespace util