feat(functional-programming)

c0nstexpr · c0nstexpr · commit a8c042b235b7 · 2024-02-19T17:28:55.000+08:00
diff --git a/include/stdsharp/functional/fp.h b/include/stdsharp/functional/fp.h
@@ -0,0 +1,23 @@
+#pragma once
+
+#include "invocables.h"
+
+#include "../compilation_config_in.h"
+
+namespace stdsharp::fp
+{
+    template<typename... Fn>
+    class function
+    {
+    private:
+        invocables<Fn...> fn_;
+
+        template<std::size_t Layer, typename... Args>
+        constexpr decltype(auto) impl(Args&&... args) const
+        {
+            return invoke_at<Layer>(fn_, cpp_forward(args)...);
+        }
+    };
+}
+
+#include "../compilation_config_out.h"
diff --git a/include/stdsharp/type_traits/indexed_traits.h b/include/stdsharp/type_traits/indexed_traits.h
@@ -1,3 +1,5 @@
+ // TODO: __cpp_pack_indexing >= 202311L
+
 #pragma once
 
 #include "core_traits.h"
