// error_code stub implementation, for compatibility only
// Copyright Beman Dawes 2002, 2006
// Copyright Peter Dimov 2018
// 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 library home page at http://www.boost.org/libs/system
//----------------------------------------------------------------------------//
// define BOOST_SYSTEM_SOURCE so that <boost/system/config.hpp> knows
// the library is being built (possibly exporting rather than importing code)
// namespace boost