From a6f095c01e93090e185afd0d9f26bf4565a552ed Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Fri, 4 May 2018 11:51:47 +0200
Subject: compat, logic/pipeline: add bitwise enum operators

---
 compat/enum-operators.hpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 compat/enum-operators.hpp

(limited to 'compat')

diff --git a/compat/enum-operators.hpp b/compat/enum-operators.hpp
new file mode 100644
index 00000000..e956c461
--- /dev/null
+++ b/compat/enum-operators.hpp
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <type_traits>
+
+#define OTR_FLAGS_OP2(type, op)                                         \
+    inline type operator op (type a, type b)                            \
+    {                                                                   \
+        using t__ = std::underlying_type_t<type>;                       \
+        return static_cast<type>(t__((a)) op t__((b)));                 \
+    } // end
+
+#define OTR_FLAGS_SHIFT(type, op)                                       \
+    type operator op (type, unsigned) = delete;
+
+#define OTR_FLAGS_OP1(type, op)                                         \
+    inline type operator op (type x)                                    \
+    {                                                                   \
+        using t__ = std::underlying_type_t<type>;                       \
+        return static_cast<type>(t__((x)));                             \
+    } // end
+
+#define DEFINE_ENUM_OPERATORS(type)                                     \
+    OTR_FLAGS_OP2(type, |)                                              \
+    OTR_FLAGS_OP2(type, &)                                              \
+    OTR_FLAGS_OP2(type, ^)                                              \
+    OTR_FLAGS_OP1(type, ~)                                              \
+    OTR_FLAGS_SHIFT(type, <<);                                          \
+    OTR_FLAGS_SHIFT(type, >>); // end
-- 
cgit v1.2.3