[/ / Copyright (c) 2015 Boost development team / / 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) /] [section:bitwise Bitwise comparison] [caution this feature is not available for non C++11 compilers.] The manipulator [classref boost::test_tools::bitwise] can be provided to the __BOOST_TEST__ macro in order to have a bitwise comparison of the operands. In that case, the __UTF__ indicates the bit indices where the two operands do not match. [bt_example boost_test_bitwise..BOOST_TEST bitwise comparison..run-fail] [note the indices start at least significant bit.] [endsect] [/ bitwise comparison]