Initial Course

modules/12_cpp20/include/span.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <span>
+#include <vector>
+
+namespace cpp20 {
+
+[[nodiscard]] auto span_sum(std::span<const int> data) -> int;
+[[nodiscard]] auto first_and_last(std::span<const int> data) -> std::pair<int, int>;
+[[nodiscard]] auto make_subspan(std::span<const int> data, std::size_t offset, std::size_t count)
+    -> std::vector<int>;
+
+}  // namespace cpp20