From e66286ebe30afc9acc4531fc2bea29b7fb924f93 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Mon, 30 May 2022 17:03:20 -0700
Subject: Changeset: 56 Buildsystem cleanup: change to layered structure for
 different targets

---
 source/10-common/YCombinator.hpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 source/10-common/YCombinator.hpp

(limited to 'source/10-common/YCombinator.hpp')

diff --git a/source/10-common/YCombinator.hpp b/source/10-common/YCombinator.hpp
new file mode 100644
index 0000000..b1d2350
--- /dev/null
+++ b/source/10-common/YCombinator.hpp
@@ -0,0 +1,14 @@
+#pragma once
+
+template <class Func>
+struct YCombinator {
+	// NOTE: implicit constructor allows initializing this
+	Func func;
+
+	template <class... Ts>
+	decltype(auto) operator()(Ts&&... args) const {
+        // NOTE: static_cast<Ts>(args)... is equivalent to std::forward<Ts>(args)...
+        //       written this way so that we don't have to include <utility>, as well as reducing template instanciations to help compile time
+		return func(*this, static_cast<Ts>(args)...);
+	}
+};
-- 
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