From 443544be4f58f47e6432a2676ff81d8b782ce1b6 Mon Sep 17 00:00:00 2001
From: theoreticalbts <theoreticalbts@users.noreply.github.com>
Date: Thu, 2 Jul 2015 15:02:10 -0400
Subject: [PATCH] bitutil.h:  Implement endian reversal inline functions

---
 include/fc/bitutil.hpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 include/fc/bitutil.hpp

diff --git a/include/fc/bitutil.hpp b/include/fc/bitutil.hpp
new file mode 100644
index 0000000..4d6c3ab
--- /dev/null
+++ b/include/fc/bitutil.hpp
@@ -0,0 +1,28 @@
+#pragma once
+#include <stdint.h>
+
+namespace fc {
+
+inline uint64_t endian_reverse_u64( uint64_t x )
+{
+   return (((x >> 0x38) & 0xFF)        )
+        | (((x >> 0x30) & 0xFF) << 0x08)
+        | (((x >> 0x28) & 0xFF) << 0x10)
+        | (((x >> 0x20) & 0xFF) << 0x18)
+        | (((x >> 0x18) & 0xFF) << 0x20)
+        | (((x >> 0x10) & 0xFF) << 0x28)
+        | (((x >> 0x08) & 0xFF) << 0x30)
+        | (((x        ) & 0xFF) << 0x38)
+        ;
+}
+
+inline uint32_t endian_reverse_u32( uint32_t x )
+{
+   return (((x >> 0x18) & 0xFF)        )
+        | (((x >> 0x10) & 0xFF) << 0x08)
+        | (((x >> 0x08) & 0xFF) << 0x10)
+        | (((x        ) & 0xFF) << 0x18)
+        ;
+}
+
+} // namespace fc