[Boost-commit] svn:boost r65177 - sandbox/endian_ext/boost/integer

Subject: [Boost-commit] svn:boost r65177 - sandbox/endian_ext/boost/integer
From: vicente.botet_at_[hidden]
Date: 2010-09-01 15:40:11

Author: viboes
Date: 2010-09-01 15:40:09 EDT (Wed, 01 Sep 2010)
New Revision: 65177
URL: http://svn.boost.org/trac/boost/changeset/65177

Log:
Added endian flip
Added:
   sandbox/endian_ext/boost/integer/endian_flip.hpp   (contents, props changed)

Added: sandbox/endian_ext/boost/integer/endian_flip.hpp
==============================================================================
--- (empty file)
+++ sandbox/endian_ext/boost/integer/endian_flip.hpp	2010-09-01 15:40:09 EDT (Wed, 01 Sep 2010)
@@ -0,0 +1,96 @@
+//  endian_flip.hpp  -------------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2010
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  http://www.boost.org/LICENSE_1_0.txt
+
+#ifndef BOOST_ENDIAN_FLIP_HPP
+#define BOOST_ENDIAN_FLIP_HPP
+
+#include <boost/integer.hpp>
+namespace boost
+{
+namespace integer
+{
+  inline void endian_flip(int16_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+1);
+    *(rep+1) = tmp;
+  }
+
+  inline void endian_flip(int32_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+3);
+    *(rep+3) = tmp;
+    tmp = *(rep+1);
+    *(rep+1) = *(rep+2);
+    *(rep+2) = tmp;
+  }
+
+  inline void endian_flip(int64_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+7);
+    *(rep+7) = tmp;
+    tmp = *(rep+1);
+    *(rep+1) = *(rep+6);
+    *(rep+6) = tmp;
+    tmp = *(rep+2);
+    *(rep+2) = *(rep+5);
+    *(rep+5) = tmp;
+    tmp = *(rep+3);
+    *(rep+3) = *(rep+4);
+    *(rep+4) = tmp;
+  }
+
+  inline void endian_flip(uint16_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+1);
+    *(rep+1) = tmp;
+  }
+
+  inline void endian_flip(uint32_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+3);
+    *(rep+3) = tmp;
+    tmp = *(rep+1);
+    *(rep+1) = *(rep+2);
+    *(rep+2) = tmp;
+  }
+
+  inline void endian_flip(uint64_t& x)
+  {
+    char* rep = reinterpret_cast<char*>(&x);
+    char tmp;
+    tmp = *rep;
+    *rep = *(rep+7);
+    *(rep+7) = tmp;
+    tmp = *(rep+1);
+    *(rep+1) = *(rep+6);
+    *(rep+6) = tmp;
+    tmp = *(rep+2);
+    *(rep+2) = *(rep+5);
+    *(rep+5) = tmp;
+    tmp = *(rep+3);
+    *(rep+3) = *(rep+4);
+    *(rep+4) = tmp;
+  }
+}  // namespace integer
+}  // namespace boost
+
+#endif // BOOST_ENDIAN_FLIP_HPP