sysclk: remove old hocclk, bump version

Source/hoc-clk/common/include/cpp_util.hpp

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) meha3945 (hanai3bi)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+#pragma once
+
+#include <utility>
+
+template<typename F>
+class ScopeGuard {
+public:
+    ScopeGuard(F&& f)
+     : f(f), engaged(true) {};
+
+    ~ScopeGuard() {
+        if (engaged)
+            f();
+    };
+
+    ScopeGuard(ScopeGuard&& rhs)
+     : f(std::move(rhs.f)) {};
+
+    void dismiss() { engaged = false; }
+
+private:
+    F f;
+    bool engaged;
+};
+
+struct MakeScopeExit {
+    template<typename F>
+    ScopeGuard<F> operator+=(F&& f) {
+        return ScopeGuard<F>(std::move(f));
+    };
+};
+
+#define STRING_CAT2(x, y) x##y
+#define STRING_CAT(x, y) STRING_CAT2(x, y)
+#define SCOPE_GUARD MakeScopeExit() += [&]() __attribute__((always_inline))
+#define SCOPE_EXIT auto STRING_CAT(scope_exit_, __LINE__) = SCOPE_GUARD