Index: crc.hpp
===================================================================
--- crc.hpp	(revision 53002)
+++ crc.hpp	(working copy)
@@ -947,6 +947,7 @@
     void const *  bytes_end
 )
 {
+    value_type r = rem_;
     // Recompute the CRC for each byte passed
     for ( unsigned char const * p
      = static_cast<unsigned char const *>(bytes_begin) ; p < bytes_end ; ++p )
@@ -955,10 +956,12 @@
         // get the new bits, shift out the remainder's current higher
         // bits, and update the remainder with the polynominal division
         // of the new bits.
-        unsigned char const  byte_index = helper_type::index( rem_, *p );
-        rem_ = helper_type::shift( rem_ );
-        rem_ ^= crc_table_type::table_[ byte_index ];
+        unsigned char const  byte_index = helper_type::index( r, *p );
+        r = helper_type::shift( r );
+        r ^= crc_table_type::table_[ byte_index ];
     }
+
+    rem_ = r;
 }
 
 template < std::size_t Bits, BOOST_CRC_PARM_TYPE TruncPoly,