[Boost-commit] svn:boost r62921 - sandbox/SOC/2010/bits_and_ints/boost/integer

Subject: [Boost-commit] svn:boost r62921 - sandbox/SOC/2010/bits_and_ints/boost/integer
From: muriloufg_at_[hidden]
Date: 2010-06-13 14:27:38

Author: murilov
Date: 2010-06-13 14:27:37 EDT (Sun, 13 Jun 2010)
New Revision: 62921
URL: http://svn.boost.org/trac/boost/changeset/62921

Log:
Removed modify_bit metafunction. Since we have set_bit and clear_bit we do not need that metafunction.
Added:
   sandbox/SOC/2010/bits_and_ints/boost/integer/bit_utils.hpp   (contents, props changed)

Added: sandbox/SOC/2010/bits_and_ints/boost/integer/bit_utils.hpp
==============================================================================
--- (empty file)
+++ sandbox/SOC/2010/bits_and_ints/boost/integer/bit_utils.hpp	2010-06-13 14:27:37 EDT (Sun, 13 Jun 2010)
@@ -0,0 +1,51 @@
+//  Boost integer/bit_utils.hpp header file  ------------------------------//
+
+//  (C) Copyright Murilo Adriano Vasconcelos 2010.
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+
+//  See http://www.boost.org for updates, documentation, and revision history. 
+
+#ifndef BOOST_BIT_UTILS_INCLUDED
+#define BOOST_BIT_UTILS_INCLUDED
+
+#include <boost/config.hpp> // for BOOST_STATIC_CONSTANT
+
+/*
+ *	Some utilities to handle integers.
+ */
+namespace boost
+{
+	
+// Sets the bit `pos' in data
+template <typename T, T data, unsigned char pos>
+struct set_bit
+{
+	BOOST_STATIC_CONSTANT(T, value = data | (T(1) << pos));
+}; // set_bit
+
+// Clear the bit `pos' in data
+template <typename T, T data, unsigned char pos>
+struct clear_bit
+{
+	BOOST_STATIC_CONSTANT(T, value = data & ~(T(1) << pos));
+}; // clear_bit
+
+// If the bit `pos' is 1 then it will be 0 if not the bit will be 1
+template <typename T, T data, unsigned char pos>
+struct flip_bit
+{
+	BOOST_STATIC_CONSTANT(T, value = data ^ (T(1) << pos));
+}; // flip_bit
+
+// Test if the bit in `pos' positon is set or not
+template <typename T, T data, unsigned char pos>
+struct test_bit
+{
+	BOOST_STATIC_CONSTANT(bool, value = ((data >> pos) & T(1)) != T(0));
+}; // test_bit	
+	
+} // boost
+
+#endif
\ No newline at end of file