refactor: make talon's choice of result message easier to read in the code as per Richard's suggestion.
// Boost.Function library
// Copyright Douglas Gregor 2002-2003. Use, modification and
// distribution is subject to 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)
// For more information, see http://www.boost.org
#ifndef BOOST_FUNCTION_PROLOGUE_HPP
#define BOOST_FUNCTION_PROLOGUE_HPP
# include <cassert>
# include <algorithm>
# include <boost/config/no_tr1/functional.hpp> // unary_function, binary_function
# include <boost/throw_exception.hpp>
# include <boost/config.hpp>
# include <boost/function/function_base.hpp>
# include <boost/mem_fn.hpp>
# include <boost/type_traits/is_integral.hpp>
# include <boost/preprocessor/enum.hpp>
# include <boost/preprocessor/enum_params.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/repeat.hpp>
# include <boost/preprocessor/inc.hpp>
# include <boost/type_traits/is_void.hpp>
#endif // BOOST_FUNCTION_PROLOGUE_HPP