From 5a6f8cac09770d315fe4a3258fa6116e65750f24 Mon Sep 17 00:00:00 2001
From: ouwou <26526779+ouwou@users.noreply.github.com>
Date: Sun, 29 Jan 2023 21:33:34 -0500
Subject: first pass compile time optimization

---
 src/misc/bitwise.hpp     | 38 ++++++++++++++++++++++++++++++++++++++
 src/misc/is_optional.hpp |  9 +++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 src/misc/bitwise.hpp
 create mode 100644 src/misc/is_optional.hpp

(limited to 'src/misc')

diff --git a/src/misc/bitwise.hpp b/src/misc/bitwise.hpp
new file mode 100644
index 0000000..ecce333
--- /dev/null
+++ b/src/misc/bitwise.hpp
@@ -0,0 +1,38 @@
+#pragma once
+#include <type_traits>
+
+template<typename T>
+struct Bitwise {
+    static const bool enable = false;
+};
+
+template<typename T>
+typename std::enable_if<Bitwise<T>::enable, T>::type operator|(T a, T b) {
+    using x = typename std::underlying_type<T>::type;
+    return static_cast<T>(static_cast<x>(a) | static_cast<x>(b));
+}
+
+template<typename T>
+typename std::enable_if<Bitwise<T>::enable, T>::type operator|=(T &a, T b) {
+    using x = typename std::underlying_type<T>::type;
+    a = static_cast<T>(static_cast<x>(a) | static_cast<x>(b));
+    return a;
+}
+
+template<typename T>
+typename std::enable_if<Bitwise<T>::enable, T>::type operator&(T a, T b) {
+    using x = typename std::underlying_type<T>::type;
+    return static_cast<T>(static_cast<x>(a) & static_cast<x>(b));
+}
+
+template<typename T>
+typename std::enable_if<Bitwise<T>::enable, T>::type operator&=(T &a, T b) {
+    using x = typename std::underlying_type<T>::type;
+    a = static_cast<T>(static_cast<x>(a) & static_cast<x>(b));
+    return a;
+}
+
+template<typename T>
+typename std::enable_if<Bitwise<T>::enable, T>::type operator~(T a) {
+    return static_cast<T>(~static_cast<typename std::underlying_type<T>::type>(a));
+}
diff --git a/src/misc/is_optional.hpp b/src/misc/is_optional.hpp
new file mode 100644
index 0000000..2c7c973
--- /dev/null
+++ b/src/misc/is_optional.hpp
@@ -0,0 +1,9 @@
+#pragma once
+#include <optional>
+#include <type_traits>
+
+template<typename T>
+struct is_optional : std::false_type {};
+
+template<typename T>
+struct is_optional<std::optional<T>> : std::true_type {};
-- 
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