[Boost-commit] svn:boost r63102 - sandbox/SOC/2010/bit_masks/boost/integer/details

Subject: [Boost-commit] svn:boost r63102 - sandbox/SOC/2010/bit_masks/boost/integer/details
From: bbartmanboost_at_[hidden]
Date: 2010-06-19 13:24:34

Author: bbartman
Date: 2010-06-19 13:24:33 EDT (Sat, 19 Jun 2010)
New Revision: 63102
URL: http://svn.boost.org/trac/boost/changeset/63102

Log:
removing unneeded code
Removed:
   sandbox/SOC/2010/bit_masks/boost/integer/details/arbitrary_twos_complement.hpp

Deleted: sandbox/SOC/2010/bit_masks/boost/integer/details/arbitrary_twos_complement.hpp
==============================================================================
--- sandbox/SOC/2010/bit_masks/boost/integer/details/arbitrary_twos_complement.hpp	2010-06-19 13:24:33 EDT (Sat, 19 Jun 2010)
+++ (empty file)
@@ -1,136 +0,0 @@
-//  Copyright 2010 Brian Bartman.
-//  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)
-
-#ifndef BOOST_ARBITRARY_TWOS_COMPLEMENT_HPP
-#define BOOST_ARBITRARY_TWOS_COMPLEMENT_HPP
-
-#include <boost/static_assert.hpp>
-#include <boost/integer/bits_mask.hpp>
-#include <boost/type_traits.hpp>
-#include <boost/mpl/not.hpp>
-
-// std includes.
-#include <cstddef>
-
-
-namespace boost { namespace details {
-
-template <  typename Encoded_Type,
-            std::size_t Width,
-            typename Return_Type,
-            bool Is_Signed
->
-struct twos_complement_decoding_impl;
-
-
-template <typename Decoding_From_Type, std::size_t Width, typename Return_Type>
-struct twos_complement_decoding_impl<Decoding_From_Type,Width,Return_Type,true> {
-    Return_Type operator() (Decoding_From_Type const& encoded_value) {
-        // sign bit
-        Return_Type sign_bit = static_cast<Return_Type>(
-            encoded_value
-              &
-            bits_mask<
-                Decoding_From_Type,
-                Width - 1
-            >::value
-        );
-        // Value Bits.
-        Return_Type value_bits = 
-            encoded_value
-              &
-            low_bits_mask<Decoding_From_Type,Width-1>::value;
-
-        return value_bits + (Return_Type(0) - sign_bit);
-    }
-};
-
-template <typename Decoding_Type, std::size_t Width, typename Return_Type >
-struct twos_complement_decoding_impl<Decoding_Type,Width,Return_Type,false> {
-    Return_Type operator() (Decoding_Type const& non_encoded_value) {
-        return non_encoded_value;
-    }
-};
-
-
-
-template <  typename Encoding_Type,
-            std::size_t Width,
-            typename Return_Type,
-            bool Is_Signed
->
-struct twos_complement_encoding_impl;
-
-
-template <typename Encoding_Type, std::size_t Width, typename Return_Type>
-struct twos_complement_encoding_impl<Encoding_Type, Width, Return_Type, true> {
-    Return_Type operator() (Encoding_Type const& value_to_encode) {
-        return static_cast<
-            typename make_unsigned<Encoding_Type>::type
-        >(
-            value_to_encode & low_bits_mask<Return_Type, Width - 1>::value
-        )
-          ^
-        (static_cast<
-            typename make_unsigned<Encoding_Type>::type
-        >(
-            value_to_encode & bits_mask<
-                                Encoding_Type, 
-                                bit_width<Encoding_Type>::value - 1 
-                            >::value 
-        ) >> (bit_width<Encoding_Type>::value - Width));
-    }
-};
-
-template <typename Encoding_Type, std::size_t Width, typename Return_Type>
-struct twos_complement_encoding_impl<Encoding_Type, Width, Return_Type, false> {
-    Return_Type operator() (Encoding_Type const& value_to_encode) {
-        return Return_Type(value_to_encode);
-    }
-};
-
-
-
-} // end details.
-
-template <typename Encoded_Type, std::size_t Width, typename Return_Type>
-Return_Type twos_complement_encoding(Encoded_Type  x) {
-    BOOST_STATIC_ASSERT( Width != 0 );
-    return details::twos_complement_encoding_impl<
-        Encoded_Type,
-        Width,
-        Return_Type,
-        is_signed< Encoded_Type >::value
-          &&
-        bit_width< Encoded_Type >::value != Width
-          &&
-        mpl::not_< is_same< Encoded_Type, bool > >::value
-          &&
-        Width != 1
-    >()(x);
-}
-
-template <typename Decoding_Type, std::size_t Width, typename Return_Type>
-Return_Type twos_complement_decoding(Decoding_Type x) {
-    BOOST_STATIC_ASSERT( Width != 0 );
-    return details::twos_complement_decoding_impl<
-        Decoding_Type,
-        Width,
-        Return_Type,
-        is_signed< Return_Type >::value
-          &&
-        bit_width< Return_Type >::value != Width
-          &&
-        mpl::not_< is_same< Return_Type, bool > >::value
-          &&
-        Width != 1
-    >()( x );
-}
-
-}
-
-
-
-#endif