From cdacc014f3c269f07c166499e0618bd879b412a5 Mon Sep 17 00:00:00 2001
From: Jack Andersen <jackoalan@gmail.com>
Date: Fri, 20 Nov 2015 15:11:23 -1000
Subject: [PATCH] Added handy bitwise enum enabler macro

---
 include/Athena/Global.hpp | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/include/Athena/Global.hpp b/include/Athena/Global.hpp
index 304f189..322fb0f 100644
--- a/include/Athena/Global.hpp
+++ b/include/Athena/Global.hpp
@@ -69,6 +69,35 @@ typedef struct stat64 stat64_t;
 #define ROUND_UP_32(val) (((val) + 31) & ~31)
 #define ROUND_UP_16(val) (((val) + 15) & ~15)
 
+#define ENABLE_BITWISE_ENUM(type)\
+inline type operator|(type a, type b)\
+{\
+    using T = std::underlying_type_t<type>;\
+    return type(static_cast<T>(a) | static_cast<T>(b));\
+}\
+inline type operator&(type a, type b)\
+{\
+    using T = std::underlying_type_t<type>;\
+    return type(static_cast<T>(a) & static_cast<T>(b));\
+}\
+inline type& operator|=(type& a, const type& b)\
+{\
+    using T = std::underlying_type_t<type>;\
+    a = type(static_cast<T>(a) | static_cast<T>(b));\
+    return a;\
+}\
+inline type& operator&=(type& a, const type& b)\
+{\
+    using T = std::underlying_type_t<type>;\
+    a = type(static_cast<T>(a) & static_cast<T>(b));\
+    return a;\
+}\
+inline type operator~(const type& key)\
+{\
+    using T = std::underlying_type_t<type>;\
+    return type(~static_cast<T>(key));\
+}
+
 namespace Athena
 {
 namespace error