boost_smart_ptr/include/boost/smart_ptr/bad_weak_ptr.hpp

#ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
#define BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED

// MS compatible compilers support #pragma once

#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif

//
//  boost/smart_ptr/bad_weak_ptr.hpp
//
//  Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
//
// 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)
//

#include <boost/config.hpp>
#include <exception>

namespace boost
{

#if defined(BOOST_CLANG)
// Intel C++ on Mac defines __clang__ but doesn't support the pragma
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wweak-vtables"
#endif

class bad_weak_ptr: public std::exception
{
public:

    char const * what() const noexcept override
    {
        return "tr1::bad_weak_ptr";
    }
};

#if defined(BOOST_CLANG)
# pragma clang diagnostic pop
#endif

} // namespace boost

#endif  // #ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED